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You are 12 weeks pregnant.

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Born & Birth stories

The crown-to-rump length of your growing baby is almost 2.5 inches and she now weighs between 8 and 14 grams! In just three weeks, fetal size has more than doubled and begins to look a lot more human. Even though you will not be able to feel your baby moving at this time, you can stimulate him and he will squint, open his mouth and move his fingers or toes.

By the end of this week, your uterus is too large to remain completely in your pelvis. You might be able to feel your uterus above your pubic bone. The uterus will continue to grow throughout your pregnancy and will return to its usual size within a few weeks after delivery. Before pregnancy, the uterus is almost solid and holds less than 0.3 ounces. During pregnancy, your uterus will become a thin-walled, muscular container that will hold the fetus, amniotic fluid and placenta. Before pregnancy, the uterus weighs approximately 2.5 ounces and when your baby is born, it will weigh almost 40 ounces!

Because most of the structures are already formed at this point, few will be formed after this time. The structures will continue to grow and develop throughout the remainder of your pregnancy. The skeletal system now has centers of bone formation in most of the bones. The digestive system is capable of making contractions that push food through the bowels and is also able to absorb sugar. The pituitary gland is beginning to make hormones. You will probably be able to hear the fetal heartbeat with a doppler at this time!

This week may be the first week that you begin to feel better! Morning sickness often tends to improve or diminish at this time. You may begin to show slightly, especially if this is not your first pregnancy. You will feel more comfortable in loose clothing, such as maternity clothes. In addition to your tummy getting larger , you may notice an increase of size in your breasts, hips, legs and sides.

Your baby develops reflexes and the skin is very sensitive.
The brain is fully formed and the child can feel pain. The baby may even suck his thumb. The eyelids now cover the eyes and will remain shut until the seventh month to protect the delicate optical nerve fibers.

See also:

Depression during pregnancy

Abdominal pain during pregnancy

Comments on week 12

Comments 1-49 of about 837 from week 12
2 messages have been added in the last 24 hours.
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jamie86 - 1 days ago
Holz I got the 11th and will be 14 weeks so hoping I'll get a good guess too.

holz8519 - 2 days ago
They wont say with certainty but I've always asked the tech what they were leaning towards. They were right for both my son and daughter at the 13 week scan. Even the techs for the 20 week scan are cautious of telling moms the sex and they give us a disclaimer so they are not held liable if they were wrong.

Treadingwater - 2 days ago
holz8519 - I'm from wk 8 and I'm surprised you got the gender to early! From where i am at they refuse to let you know until you are 20 weeks. My first one I found out at 16 weeks.

holz8519 - 3 days ago
Hi ladies jumping up a few days early there doesn't seem to be any active members in week 11. My prenatal clinic just called to reschedule my 1st trimester screening so instead of the 13th I'll be going the 10th. Should be right about 13 weeks so maybe I'll get lucky and find out gender. I found out with my last 2 at 13 weeks.

delarla - 3 days ago
2 days till we hopefully find out what we are having... if not then 5 days till our elective u/s. Ah can't wait! Hope everyone is feeling well. I've been super gassy... constantly burping Like ever 5 seconds. You would.think I was guzzling soda!

beckym - 4 days ago
Thanks delarla. :) For all the ladies going still in that nervous hopeful stage I will keep you in my prayers that relief will wash over you as well with the next doctors visit, I want all of us to have happy pregnancies.

delarla - 5 days ago
Congrats becky!!!

beckym - 5 days ago
They really know how to lay on the suspense, but I am happy to say the baby is doing great! They couldn't find the heartbeat for about 15 agonizingly slow minutes they found mine and I blurted excitedly is that it, they replied no, it's yours, then they found a faster heartbeat, I jumped to saying again is that it?! She replied, no, still you, just more anxious, then said we will do an ultrasound, had me wait in the waiting room for literally an hour, then called me in and we did a belly ultrasound, I was having Deja vu and between the no heartbeat doppler and then I saw baby on bottom of uterus, I can't say I didn't freak out, but then I saw the little arms and legs moving, and she locked on to the heartbeat, I was overjoyed with such relief washing over me that we were going to be ok this time. I really feel like I can start enjoying this pregnancy now, I was hopeful before, but also full of fear and dread of it happening again, 2nd trimester is here, and we are ok. So relieved.

Free2Bmom - 5 days ago
Thank you mrscephas! I was 1/159. I'm having the blood work to have a better idea (which isn't covered here so it's $800). I refused the amino because I've had 10 miscarriages.... Just too risky. I saw my doc today and he said because our genetic testing was good with my husband and I, the chance of DS is extremely low, but he did write a letter to try n get the NIPT blood testing covered by my insurance. He also said the majority of the time low PAPP A levels don't mean squat, but it's better to know what our future pregnancy risks are cause it helps plan for possible early delivery if there is something going on. He was very reassuring to talk to today.

mrscephas - 5 days ago
Free2be, I had low Papp-a with my son's pregnancy 3 yrs ago and naturally I was worried. He'd a 1 in 67 chance (I can't remember correctly) of having ds but he was perfect and is now a bright avd active 2 year old. So don't worry too much :)

jamie86 - 6 days ago
Thank you becky. I wish the best for all of us too. We are doing everything possible to help this time around so I feel good about this time. Still nervous about the next couple of weeks though. I think recording the heartbeat is a great idea! I may have to do that too.

beckym - 7 days ago
That is so exciting that you ladies might find out the sex! Jamie, I wish you all the best with this pregnancy, all of us mommies, and babies 😊. Today is the day of the doppler, time is creeping by like on Christmas morning I am really hoping for good news, I think I will record the heartbeat on my tablet so that I can play it back any time I want if I want to hear the baby.

jamie86 - 7 days ago
That's so exciting! I go in 2 more weeks to check on th Subchorionic hematoma and I'm hoping we will get a peak at the gender. We did the last time at 14 weeks so fingers crossed!

delarla - 7 days ago
Just had an app the other day and baby was sucking it's thumb! We go in next week for our genetic ultrasound And possibly find out the sex. Can't wait!

jamie86 - 8 days ago
Becky- I completely understand where you are coming from. Last feb I went it for my 19 week appt and found out my baby no longer had a hb, she passed around 15 weeks. Then in July it happened again but I was 14 weeks. We have hopefully found the cause though so I'm more hopeful this time around. Its very rare to lose them so late and even more rare to lose them back to back like that. Best of luck to you!

beckym - 8 days ago
Tomorrow is a huge marker in my pregnancy, we get a doppler app for the 12 week marker, last time we couldn't find a heartbeat at this week from my last pregnancy which ended in tragedy, I am trying to keep it together but I am very nervous, I think if this goes well I can finally begin to enjoy this pregnancy, this whole time I have been nervous that it will happen again. I am very hopeful, and nervous, I don't think I could go through that again, I barely made it last time physically and mentally. To be honest it happened last april, and we were surprised to find out we were pregnant again, I have not fully felt right since it happened, but this has helped, being pregnant again, I almost feel like maybe God is giving my little one's soul another chance with us in this world, maybe it wasn't his turn or time yet. But tomorrow is the heartbeat check.

beckym - 8 days ago
Freetobmom, I couldn't find any, but a .6 percent is really low too, but I understand your worries.

Free2Bmom - 8 days ago
I had my nuchal test today. My blood work was done a few days ago. The ultrasound looked great! My little baby was wiggling around like crazy and it took her a while to get a clear view of the neck so it was nice to see my baby for a good 20 mins. I dated farther along than I'm supposed to be, by 5 days which is good. After the ultrasound, they put me in a room to speak with a nurse about the combined results of ultrasound, bloodwork, my weight, age ect. I just turned 28, I'm not overweight at 140lbs and the ultrasound showed zero abnormalities but my PAPP-A results were very low, so I failed the nuchal test for down syndrome....... It actually boils down to a .6% chance of down syndrome which to me is so low that I am confused as to why that would be considered a fail. I have a 99.4% chance the baby is NOT Down syndrome. Anyway, low PAPP-A results can also be caused by a low functioning placenta which can cause preterm birth, stillborn, fetal demise, cerebral palsy, low birth weight ect. I have suspected poor placentas in past miscarriages because I just had an instinct that my 10 miscarriages, the placenta did not implant properly, however, I've never had proof of that, just a hunch. TMI all of my miscarriages started with a large solid bowel movement, which led me to think it somehow had my intestines put pressure on my uterus, causing the placenta to let go. I have had one completely normal pregnancy, with a normal placenta, resulting in my perfectly normal, 9 lb at birth son. I've never made it past 6-8 weeks with any of the others so being at 12+ weeks had me thinking I was safe. Has anyone else had low PAPP-A levels? Does anyone know if there are ways to increasthose levels? I can't see my doctor until Friday and I'm kind of scared. A friend of mine just had an unexplained loss at six months. I'm feeling a lot of baby movement already (started Sunday night) which is unbelievable for most. I keep being told I'm crazy but true fetal movement is unmistakable..... A different feeling than gas bubbles ect. Once you've felt them you know what they are. I'm scared that I'm already so attached to this baby that I'll lose it. Anyone else know if I can increase my levels?

mrscephas - 14 days ago
So excited 12 weeks today!!!! Oh but the exhaustion... 10:45 and I feel like ready to jump back in bed, given the chance. Shame I've got work till 6pm!

maimai88 - 28 days ago
Ericalynn- the placenta starts taking over around that time, so I think its normal to see levels drop some and even out. Also the main thing at this stage is to check for growth- you had a great ultrasound and your baby is measuring right on track, so I wouldn't worry about the hcg dropping some, especially since it happened a few weeks before your last ultrasound and the placenta takes over hormone production during that time anyway and levels naturally drop ( which is also why we start to notice often a decrease in the inital, intense, first trimester symptoms) . But I think it's always good to check with your Dr. if you have any questions or concerns!

xEricaLynn - 28 days ago
I noticed my HCG levels dropped 15,000+ from week 9 to week 10, but at 11.5 weeks our baby was on the ultrasound with a strong heartbeat. Is it normal for HCG levels to drop so much like that? I sent an email to my OB, waiting to hear from him.

maimai88 - 29 days ago
And I hear ya on getting more energy!:) 12+5 here, and I'm starting to feel better for the most part. Still have a huge craving for sweets though! Ericalynn, sorry to hear nausea is still bothering you a lot! Hopefully soon as we enter 2nd trimester, things will start to smoothen out:) Have you ladies gotten a flu shot this year? I haven't gotten one yet...I'm thinking I probably really should soon.

maimai88 - 29 days ago
Eliciamadora- what an adorable baby you have there! Have you ever heard of the nub theory for gender? It looks like you have a really good nub shot there. If you're interested, there is a website called ingender where they have an entire forum on ultrasound nub shot gender predictions;)

eliciamadora - 29 days ago
Hooray! 12 weeks pregnant! We had an ultrasound today and baby looks fantastic! I posted the pictures on my page if anyone would like to take a look : ) Starting to get a LITTLE more energy.. Ha..

xEricaLynn - 30 days ago
Nausea still really bad. Constipation is a real pain. (Pun intended.) And now I have a sore throat. I fear a cold coming. Great. So, how is everyone else feeling?

xEricaLynn - 32 days ago
Week 12 today, yay!

sare32 - 33 days ago
Morning well not been on here for a few yrs but glad to be back. Am 12 weeks today. Question is anybody else following slimming world while pregnant, I have only gained 1lb in 12 weeks because I am doing it. Got weigh in today so will see if I have gained or lost.x

soontobemommyof6 - 33 days ago
Just got the call my cerclage will be placed feb 9. You'd think being the 3rd one I've had done, the nerves wouldn't be so bad...

maimai88 - 35 days ago
12 weeks today! morning sickness returned this week:/ but so glad to be almost officially done with 1st trimester!

charcharsuperstar - 40 days ago
ShireeT I am here ! 12 weeks today, whoot whoot ! I am def feeling a little better, though like clockwork, every afternoon at about 1pm i start to feel a little nauseous.

ShireeT - 43 days ago
*crickets chirping* - 51 days ago
Fly bear, I get back pain from time to time. I also feel pain and discomfort in my stomach too on and off. To help ease it I like to take long hot showers. The pain and discomforts tend to be noticeable towards the late afternoon/early evening time frame. The pain seems to stem from my stomach feeling heavy. I have a definite pregnancy bump and it seems like my body and limbs is trying to get used to carrying around the extra load. Back massages also help to relieve pain and to relax me.

flybear - 53 days ago
Does anyone else have mid back pain? - 57 days ago
liltyke7, congratulations! I have one son and it's a big difference with him and my girls. There is something special about little boys. My son is the middle child but yet he still clings to me. He is constantly giving me hugs and kisses always wants to be in the same room as me....I love it because my girls always want to be next to their dad.

liltyke7 - 58 days ago
Last day of week 12!! Just found out yesterday through blood test that it is a boy!! we have 2 girls (6 and 3) so this is so awesome. we were shocked when we found out! - 64 days ago
12 weeks today =) .

summerhope - 76 days ago
Just had my 12 week scan and bounced from 11+6 to 12+3 woohoo 😁 hope everyone is doing well....if there is actually anyone out there!

loralb - 79 days ago
Still sick? Whaaaat?! When will it end? Hopefully not after childbirth:(

loralb - 84 days ago
I didnt know it was possible to be this excited about moving into week 12! I have been so sick and tired that i hope this week fixes most of that. I cooked dinner tonight without dry-heaves or puking so i know I'm getting there. My heart burn is worse now than i have ever experienced too. But, i am happy to be in week 12 with a decreased chance of miscarriage and for the holidays. Hang in there friends.

sleepymom - 89 days ago
moving to 13 weeks, will comment back on that page

Doda - 91 days ago
Also, just booked my ultrasound, the anatomy one which is supposed to be at 18-20 weeks and they misbooked me for the 23 or December (I'll only be 16 weeks but they made the mistake not me) so I'm going to keep the appointment and if I'm lucky will find out gender right before Christmas!!! :)

Doda - 91 days ago
ptdaddy, go to your profile (link at the top of this page) and then go to the link Change account settings then you'll be able to change your username. sleepymom, I've had 3 natural vaginal births. Did get some dilaudid for the first one (which didn't do anything FYI) but nothing else. Planning on the same with this one if I can. What about you? - 91 days ago
So excited to be 12 weeks!! With my last one I made it to 11 weeks and started bleeding. I am so thankful all is going well this time!! HAHAHA and how do I cange my email to my user name this is my husbands email lol!!

happywoman84 - 92 days ago
Sleepymom, I thank god I don't get or catch any cold at all, dublin is frosty every night while I'm from tropical country person. I hope u get better very soon, do u take any medicine? I had my migraine kicked me few days ago, used to take my panadol pill but can't do that now. Wow night shift 😁 I hope u really really take good care yourself and preparing it well. I had my first scan yesterday, the baby is very healthy and bouncing around 😊 This is my second pregnancy, my first one was in 2005 I gave a birth to a lovely son, yes long gap I know.. An di gave a birth natural. My mom said, since it's been long time u didn't get pregnant the paint will be as hardcore as the first one, she didn't help at all 😝 What about u? Btw yesterday was my last week of 12 weeks, I'm now moving into 13weeks, I'll see u there sleepymom 😊

sleepymom - 92 days ago
Happywoman, I am good, finally getting some energy back but still fighting off the kids' cold. I have to work some night shifts this week so hopefully it won't impact how long it takes to fight the cold off if I get run down again. Do you have other children? What are you planning to do for this birth? c-section or natural? How did your ultrasound go?

sleepymom - 92 days ago
Doda-that was a cute way to announce your pregnancy on Facebook. great idea. too funny about your dates. Just curious for your other pregnancies were they natural births or c-sections and what are you planning to do this time.

happywoman84 - 93 days ago
Hello sleepymom, I'm doing ok.. Feeling a bit better the nausea is reducing slowly which im happy with that, I love sniffing cajuputi oil every time I feel sick, it helps a lot 😊 Tomorrow is my first scan and ultrasound, I'm nervous, excited and happy become one. Hope everything goes well. How r u sleepy mom?

happywoman84 - 94 days ago
Hello sleepymom, I'm doing ok.. Feeling a bit better the nausea is reducing slowly which im happy with that, I love sniffing cajuputi oil every time I feel sick, it helps a lot 😊 Tomorrow is my first scan and ultrasound, I'm nervous, excited and happy become one. Hope everything goes well. How r u sleepy mom?

doda - 94 days ago
Hey sleepymom! So funny that the doctor moved your date, mine did too! I thought mine was June 14th and now he changed it to June 8th!! So now I get to move ahead first! haha ;) So I decided to announce it on FB by putting all my kids in the kitchen by the oven, one was mixing in a bowl, one had an oven mit, and one had a cupcake pan, I snapped a few cute pictures, one of them all sitting on the counter. I put a caption that said, well I figured since the first three came out perfect it was time to 'bake' another one :)

sleepymom - 96 days ago
Yay 12 weeks! Hi happy woman how r u feeling these days. I have been dealing with two feverish and coughing kids For the week but thankfully their colds seem to be getting bit better. I am good but,naturally, I have caught their cold again. Second one in a month and a half. Jeez. I must be run down.

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Members in week 12:
  1. LoLoKiss - 11 Sep 2015
  2. texasmamaof5 - 14 Sep 2015
  3. Austinjeanxo - 15 Sep 2015
  4. KalebsMommy - 15 Sep 2015
  5. holz8519 - 16 Sep 2015
  6. Stephandpat7 - 17 Sep 2015

The due date from members in week 12 is from Friday 11 September 2015 up to & including Thursday 17 September 2015. See the full timeline here

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