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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 869 from week 12
1 messages have been added in the last 24 hours.
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monkeymomma - 12 days ago
Good morning 12 weeks!!! For the past 2 nights, I have finally gotten some sleep. Loving this time of the pregnancy! - 25 days ago
I've just ordered some maternity clothes off of ebay from a store in the UK...I'm so excited they look adorable and stylish, and even with the exchange rate being .5 at this time....its still more affordable then buying them in a local shop. 2 tops, to pants, and a cute black dress including delivery all for $103.00...I cant' wait to receive them!! If anyones interested go check out ebay store named Futuro-Mama...adorable clothing!

kerry1983 - 26 days ago
Littleaussie, I'm from the UK and it's just turned spring, but the weather is horrendous! Thankfully for pregnant women our summers never really get to hot anymore!! I have a scan booked for Thursday and I can't wait! I need to put my mind at rest as I don't 'feel pregnant' at the moment! So fingers crossed all is well! Hope everyone is doing well. - 26 days ago
Ontario Canada here...spring is trying peek through...but stubborn old winter is giving her a hard time!! I don't look forward to our humid summer...I will swell like a balloon if I don't take good I opted out of the Nuchal Scan...I figure for me its not going to change anything, all it will do is stress me out...I just prepare for everything and hope for the best...whats meant to be will be I guess is my philosophy :) At this point I am just hoping week 13 brings me relief from nausea, off set taste buds and motion/car sickness...I think Im about done with this Good luck to all of you going for testing over the next few days...and to those who celebrate...have a Happy Easter Weekend with your families and don't don't forget to give little baby a taste of chocolate :) Reese Eggs for this mama!!! :)

1morefor4 - 26 days ago
LittleAussie--I'm in the state of Maryland in America. We're fluctuating between winter and spring temps right now. But it should be spring weather here to stay soon and then summer heat come June. My NT scan is next Wednesday on the 8th. But I have a midwife appt tomorrow. Hoping I get to hear the heartbeat.

LittleAussieChick - 26 days ago
Does anyone else have a Nuchal scan booked for this week? I'm on Thursday..

LittleAussieChick - 26 days ago
Today actually marks me at 12 weeks but this site is a day behind the calendar we keep here in Oz.. :)

LittleAussieChick - 26 days ago
Its not until the mention of 'pregnant in summer'that im reminded that you ladies are from other places on the planet. This will be my first pregnancy in the Winter months! lol. :) Its just started to cool down in Australia these last few days....our Winter starts on June 1st. Where are you all from? I live in the state of Queensland in Aus.

1morefor4 - 28 days ago
I'm not looking forward to the summer part of being pregnant either. I've done it once before and thankfully that summer didn't get too hot but it felt hot being pregnant. - 28 days ago
12!! With a couple of my others....I didn't even know I was pregnant until now!! This one I found out so feels like I should be further along. At this point I am sure time will start to fly by...especially with the nice weather ahead! I must say...not sure Im looking forward to being huge over the summer And I have a wedding to attend August 29 !! Hope I can find a decent dress that doesn't make me feel like a house lol.

RowdyRandi - 29 days ago
Congrats kekea. I wanna start walking. Hope i get energy soon

kekea - 29 days ago
Hey ladies. I hope you are all doing well. This week was my first week of no extreme fatigue , rowdy I was even able to workout. Lol. I made it to the second trimester!

RowdyRandi - 29 days ago
That's horrible i don't wanna know that

1morefor4 - 30 days ago
I've read between 11 and 14 weeks. But my due date is based on an u/s scan and I think the midwife office was using my lmp to date which has me a week behind the u/s scan. The u/s was after my midwife appointment so I don't think they adjusted it because they scheduled my nt scan before I left the office prior to my dating scan. So I'll see if they will change it next week if not I'm not really stressing it. A close friend was told she had no significant risk and her son was still born with downs syndrome. So I take some of these screenings with a grain of salt. I just like seeing my baby so I'll take all the u/s they offer.

RowdyRandi - 30 days ago
Oh and my granma was always underweight her whole life but now in her 70s she's finally at a normal weight. So as long as your underweight issue isn't caused by a hyperactive thyroid then you can look forward to being heavier when your old:)

RowdyRandi - 30 days ago
1morefor4 i have my nt u/s tomorrow. I thought it had to be done between 11 &13 wks

1morefor4 - 31 days ago
i'm one of those so-called lucky women who within year loses the pregnancy weight. but being naturally underweight makes it suck that I can't keep at least 10 of the 30+ pregnancy pounds just so I don't have to hear how my bmi is considered too low and unhealthy. but i'm just genetically built that way. nothing I can do about it. anyway on another topic I have another midwife appointment on the 1st when i'll be 13 weeks and my NT scan on the 8th when i'll be 14 weeks. i'm hoping next week that she will try to use the Doppler so I can hear this baby's heartbeat. I've already seen it on two u/s but still haven't heard it and I really want to hear that little swooshing sound.

LittleAussieChick - 31 days ago
RowdiRandy - You made me laugh at the chocolate comment. I need your friends!! I have many mates who have resumed pre preggo weight within the first year of giving birth...darn those friends! hahaa

RowdyRandi - 31 days ago
I don't know anyone that gets back to their pre pregnancy weight. Most stay 10-20 lbs heavier forever. I'm still 20 lbs heavier than my weight before first pregnancy. I have a cousin who runs everyday and still has never gotten back her pre children size lol. So don't sweat it kekea just as long as u get back to a size that's comfortable for u. or you can be like me and say screw it i'll just be fat cuz i love chocolate and hate running haha

kekea - 32 days ago
Lol. Rowdyrandi enjoy it while it last. I have to do better because I really can't afford to gain to much. I have the hardest time going back to my regular size

RowdyRandi - 33 days ago
I actually haven't been trying. I don't understand it i eat horribly. I'm a total pig lol. Guess it'll catch up next trimester. Most likely i'll gain more than I'm supposed to. I'm overweight so losing a little prob won't hurt

kekea - 33 days ago
Rowdyrandy I'm trying to loose some weight. Lol. Gained 7 lbs already

RowdyRandi - 33 days ago
Saw dr today found heartbeat first try. It was 164

RowdyRandi - 34 days ago
So has anyone else lost weight? I've lost 3 lbs thus far

kekea - 35 days ago
Congrats ladies!!!

lanaela - 37 days ago
Well got my gender test/ chromosomal abnormalities results ack... And it's low risk baby boy.. Woohoo one of each!

mamalira - 37 days ago
Got to hear heart tones yesterday! 140bpm!!

kekea - 39 days ago
Welcome mamalira, we are moving right along I have an appointment with the specialist and I get another ultrasound on the 30th. I will be 14 weeks then. I have never had so many ultra sounds . .. I'm still on the fence about whether to find out the sex of the baby...

mamalira - 40 days ago
Glad to be in week 12. I can't wait until Thursday I have my second appointment and will get to hear a heart rate! I haven't heard one yet and my symptoms are subsiding so I am trying not to freak out!

kekea - 43 days ago
Hello week 12. I hope everyone is feeling and doing great!!!

holz8519 - 50 days ago
texasmamaof5 I had all day nausea till about 11 weeks only got sick twice though it was miserable there was just no relief but the past week I've been feeling much better.

texasmamaof5 - 50 days ago
Am I only one experiencing horrible all day sickness? This is the absolute worst I've ever experienced and I've had four kids! I puke so much and always feel sick. I'm so miserable.

jamie86 - 53 days ago
Holz I got the 11th and will be 14 weeks so hoping I'll get a good guess too.

holz8519 - 54 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 - 54 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 - 54 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 - 55 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 - 56 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 - 56 days ago
Congrats becky!!!

beckym - 57 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 - 57 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 - 57 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 - 58 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 - 59 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 - 59 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 - 59 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 - 59 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 - 60 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 - 60 days ago
Freetobmom, I couldn't find any, but a .6 percent is really low too, but I understand your worries.

Free2Bmom - 60 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?

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Members in week 12:
  1. Babyrich15 - 01 Nov 2015
  2. lucky87 - 02 Nov 2015
  3. lulita99 - 03 Nov 2015

The due date from members in week 12 is from Sunday 1 November 2015 up to & including Friday 6 November 2015. See the full timeline here

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