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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 1-32 of about 32 from week 12
1 messages have been added in the last 24 hours.
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Jennish - 2 days ago
Fingers crossed for you BabySanders!

BabySaunders - 3 days ago
So I had an elective ultrasound on Friday (they said I'm 12w2d) and they're pretty sure it's a girl. Going back in a couple weeks to confirm. I really hope it's a girl! I have two boys. Adding some pink to our lives would be fun. Can't wait to find out!

falsterbo - 7 days ago
Hi! I am from week 4...going on 5 soon. How many of you had brown discharge with tiny specks of pink at times in earlier weeks? Yup, starting to freak out :-/

G7 - 8 days ago
hey MOMIIB, popping in from week 9. if you are having the 'cell free DNA' blood test to check for chromosomal abnormalities then from that test they will be able to tell you the gender of the baby (100% accurate). And if that's not the test but they are just doing the basic test I would ask your doctor about it because the basic test that they do in most dr offices just gives you a 'one in ##' probability but the cell free DNA test is 99% accurate. just FYI - good luck!

MOMIIB - 9 days ago
Appt went great! Heard the HB on the doppler right away at 150bpm. Still down 7lbs. Go back in 3 weeks for blood work to check for any chromosomal abnormalities. God willing all is ok with our baby. Husband still thinks it's a girl. We hope to go in about 2.5weeks to a private scan to find out the gender. We are excited and blessed either way. I am still down 7lbs, ob thinks that's soon to change as do I, but if not we will have to have a talk about it at my next appt. I still very nauseated but can't throw up.hope everyone is doing well! !!!!!!

MOMIIB - 13 days ago
12 weeks today, yay! OB appointment tomorrow morning! Will update after :-)

please be healthy - 13 days ago
See you in week 13!

please be healthy - 13 days ago
My heart is busting right now, we told our daughter she was going to be a big sister. I've watched the video of us telling her a bunch of times already. Wow what a feeling!

rayansmama - 15 days ago
I had the NT scan and got to see my little peanut who looks like a baby now! Super cute! This never gets old.. Even the third time around you get so excited to see the ultrasound and baby bouncing around! So the OB asked if I wanted to know the gender and I was so nervous and made them write it down so my husband can open the envelope first. He was home watching my two boys. Well, on the sticky note it said 'it's a boy'. Lol my husband has been devastated since the morning. He so wanted his little girl. I wanted a little girl too but a healthy baby is all we ask God for! I don't know how accurate a 13 week scan is...

please be healthy - 15 days ago
You're right! It is such a relief to see baby moving and see/hear a heartbeat. So far, so good!

naomi88 - 16 days ago
Had my ultrasound last week and everything was great. Baby was moving around like crazy. Nice strong heartbeat. Cant wait til December 3rd for my Gender Ultrasound! Also, because with my last pregnancy during my gender ultrasound is when I found out my son had Potter's Syndrome (born without kidneys). I had hardly any amniotic fluid around him so they sent me to a high risk doctor who determined he had no kidneys therefore he couldn't create his own fluid. He was born at 22 weeks. So, after my next appointment I think my mind will be a little more at ease. I just want to our healthy baby to be surrounded by amniotic fluid!

rayansmama - 16 days ago
I have an appointment tomorrow too! NT screening so I will get to see the baby again. Praying for a healthy baby!

tsubasa - 16 days ago
I have an appointment tomorrow too, but I don't think it is an US. I actually have no idea why this time! I had to switch to a different hospital because I moved out of their range so automatically I am changed to the other one. Then they gave me this appointment there so I don't really know what to expect! I'm always happy to go and get some kind of confirmation baby is doing alright though! :) Hope you have a great view of your little one!

tsubasa - 16 days ago
Please be healthy, yep... super early bedtimes over here if it is ever possible. (I will go to bed absolutely anytime I can!) And yes about the sore nipples. Actually sore breasts all around. Kind of achy and they apparently grew about twice the size.

please be healthy - 16 days ago
OMG! I either go to bed early on weekdays or I have naps on weekends. I'm always tired! I have an ultrasound tomorrow. I'm nervous and excited!

please be healthy - 18 days ago
Does anyone else have really sensitive nipples? Even taking a shower aggravates them. One more week until we tell people!

rayansmama - 20 days ago
Tsubasa- I haven't had any follow ups for the bleeding. I have an appt tomorrow so I hope she does an ultrasound. I have friends that have girls and I have seen then so calm and their girls are the cutest. Meanwhile my boys are running around and being hyper. I really want a girl so I can have some pink and purple in the house lol. Not the best reason but I am ready for a change. But I will be happy with any gender. I just want a healthy baby!

tsubasa - 21 days ago
Yeah, I am still feeling sick quite often, usually every day by around 4 I start feeling bad. Evenings are not nice at all. My daughter is still needing a lot of help with the potty and it is the worst, isn't it?! Ryansmama have you had any follow up since they found the bleeding? Mine is officially gone now and I can finally stop taking the progesterone. You have two boys and are wishing for a girl. I have two girls and my 4 yr old told me the other day, 'Maybe this baby should be a boy because we already have a girl, Mommy.' I will be thrilled either way this time. A boy would certainly be different and exciting. I don't have any brothers so I really have no idea. Lots of boys I teach at my school though! (I teach primary)

rayansmama - 21 days ago
Is anyone still dead tired! I am still a zombie at 12 weeks and morning sickness is the worst. Every time I have to change my sons diaper I feel like throwing up. Or even cooking.. Or eating. Haven't gained a single pound but that's good I guess. I have an appt on Friday so hopefully she checks the bleeding in the uterus. Other than that I feel ok. Just getting nervous now about the gender lol. I have two boys soooooo really hoping for a girl!

tsubasa - 23 days ago
Twelve weeks today Woot Woot! I saw the baby on the ultrasound yesterday and it had hiccups! So stinking cute! Today is the NT scan. Looking forward to one more chance to say hello...

bgscoobyluver - 30 days ago
funtime- I dont believe in the heartrate theory. Its rarely worked out for me

funtimemum80 - 31 days ago
Ooooooh.... Does anyone believe in the correlation between heart rate and gender?? My other babies heartbeats were 160-170 boys and lower have been girls but I'm sure it's surpossed to be the faster the heart rate the more likely it's a girl??? Which hasn't been true for me anyway

bgscoobyluver - 32 days ago
aussiemum- I am most certain I am feelin my babies! I went to my doc today bc of cramping. While they checked for heartrate the babies kept kickin and moving and evertime they kicked the doppler I felt the pop! Im so excited! Babies' heartrates were 165 and 163!

aussiemumma86 - 33 days ago
bgscoob- i swear i can feel movement as well to me it feels mostly when i sit or laying down at night like a little roll sort of movement right down low i guess you could say flutters this is my 3rd so could be i guess but then i think im going crazy lol

bgscoobyluver - 34 days ago
12 wks tomorro!! But I have been cramping so Im gonna go in in the morn n see my doc just to make sure everything is alright. Altho I swear I can feel movement already! Not actual movement just like a pop n then nothin until i eat somethin or drink some cold water then I feel another pop or 2. I pray its my babies. tomorro I can see if it really is the babies once i see where they finbd the heartbeats.

bgscoobyluver - 35 days ago
Hi Aussiemum! funtime- I feel u! I feel bad for my kids too. I hate not being able to do wat I need to. I homeschool my babies too so they r gettin a break from schoolwork which means wen I start feelin better we are gonna have to double time some things

aussiemumma86 - 35 days ago
12 weeks woo hoo. although going by my last period i should be 14.5 weeks bugt got pushed back to 12 weeks from when i had a scan at what i thought was 7 weeks pregnant to be told im 5.5 weeks pregnant. i still dont actually fully know how far iam i have been booked in for downs test next week so the doc also put if they could get a proper due date for me.

aussiemumma86 - 35 days ago
12 weeks woo hoo. although going by my last period i should be 14.5 weeks bugt got pushed back to 12 weeks from when i had a scan at what i thought was 7 weeks pregnant to be told im 5.5 weeks pregnant. i still dont actually fully know how far iam i have been booked in for downs test next week so the doc also put if they could get a proper due date for me.

funtimemum80 - 35 days ago
Sorry whilst playing my own violin I forgot to ask you how your'e feeling x

funtimemum80 - 35 days ago
Hi scoobylover- can I swear on here? Ok.... Il tame it down, I feel like poo poo! My sickness is getting worst not better! I'm really hoping it settles soon as it's no fun trying not to be sick/ being sick. My poor kiddies- I'm officially the worst mum, I force myself quickly to do anything these days..... I want my mojo back 😔

bgscoobyluver - 36 days ago
funtime- How r u feeling!

funtimemum80 - 40 days ago
Hello week 12! Now we are talking! I finally feel like we are getting somewhere..... I've still not told my family, a couple of friends so far know but I'm not ready to let my family know. Starting to pop out a bit esp in the evening when I'm all bloated and I'm feeling twinges, it's not baby probably uterine twinges but it makes me happy feeling these- someone is growing in there 😊

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Members in week 12:
  1. sherell - 02 Jun 2016
  2. 2bflgrlznbb3otw - 06 Jun 2016
  3. BabySaunders - 06 Jun 2016
  4. KcPreciosa - 06 Jun 2016
  5. mummyree - 07 Jun 2016

The due date from members in week 12 is from Thursday 2 June 2016 up to & including Wednesday 8 June 2016. See the full timeline here

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