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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 902 from week 12
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kentsmommy - 2 days ago
Hi Ladies! I'm starting to feel better now. Thank goodness!! Although I feel like someone pumped me full of air half of the time so that is uncomfortable but at least I'm not throwing up:) I actually woke up today and felt rested so maybe this is the beginning of the glory days of pregnancy:) We told my in-laws over the weekend so that was exciting. Although the excitement wears a bit more thin with the 4th baby. Lol! Hope you all have a fantastic week!!

JDH - 4 days ago
I've been getting nauseous at night again! Badly too. It sucks. 13 weeks tomorrow, I think, and I'm really looking forward to my symptoms GOING AWAY! Maybe if I yell it it will come true? I have been listening to baby's heart at night with my Doppler and that's made it all worh it though.

avg2012 - 5 days ago
I had a successful NT scan and double marker test came back with low risk. this pregnancy is not very eventful except I am facing severe constipation and loss of appetite by evening. I get metallic taste in my mouth by evening which is so annoying. how are you all feeling, is it getting better as you approach towards the end of first trimester?

avg2012 - 5 days ago
Hi ladies, I am 12 weeks today.I am expecting baby#2..but this is my 7th pregnancy. had one live birth(in year 2012 ,my son with my 4th pregnancy). I was very active here when I was pregnant with my son and in TTC after loss group. here's wishing everyone good luck and looking forward to this journey again with you all

JDH - 6 days ago
I've been having little bits of nausea here and there, but feeling great most of the time! We've started homeschooling our 5 & 3 year olds so that's added quite a bit to my plate. I'm already planning for Spring Break in March when baby #4 is born! The timing will be perfect for that! It's so fun to be at 12 weeks and feel like I can actually start embracing the pregnancy instead of fight against the exhaustion and nausea. I get to see my little peach next week!! I hope everyone is doing well. Here's to healthy mommies and babies!

kentsmommy - 6 days ago
Hi June - I think the weeks will go by faster after the first trimester as well. I actually noticed this week that I've been feeling a little better with less sleep oddly enough. My little guy is sick so I haven't gotten much rest and its working out. ha!

june2012 - 7 days ago
Week 12... Yay- 28more weeks to go... And 1more week to say goodbye to 1st Trimester... I believe I will only notice the weeks moving by quickly after the 1st Trimester... I am 12+1 today... Exhausted most times, vomiting once or twice a day and that's just about it. Op everyone else is doing great in here... X.

kentsmommy - 7 days ago
Hi ladies! How is everyone feeling? I'm slowly starting to feel more like a person with periods of morning sickness throughout the day rather than being sick all of the time. I'm also increasing energy levels:) Not quite back to normal but certainly seeing the light! Hope everyone is having a great week!!

JDH - 9 days ago
Weeeeeek 12!!!!!!! About time : ) it feels like a big milestone. So happy to be almost through the first trimester, but I'm beginning to realize how quickly this whole pregnancy is going to go!

angelfree77 - 15 days ago
Fellow Week-12ers, where are you?! lol Last week of the 1st trimester!!!!

r-baby3 - 86 days ago
Yay! So happy to be in week 12! First dr appt on Friday! Then we will finally announce the news! Morning sickness is slowly getting better as long as I eat good and dont get too hungry. I also have a bit more energy!

amy110 - 86 days ago
Hooo. It is too early to feel like a stuffed turkey!

amy110 - 89 days ago
Good to be in week 12. Not thrilled that MS seems to be worsening as time goes on :(

weber3 - 96 days ago
@pookalou sorry to hear you are suffering so much. I think since you lost your dog your emotions must be all over the place. He is truly a beloved family member. We had our dog for only one year and when we were forced to give him up I was a wreck. I didn't feel like doing anything. Except crying and walking in circles not getting anything productive done. Couple that with pregnancy hormones and morning sickness and it is no wonder you feel the way you do. I hope you soon feel your little one kicking in there and it cheers you up a bit. Brighter days are coming. This dark tunnel won't be forever.

sparks717 - 97 days ago
So sorry to hear that pookalou!

pookalou - 97 days ago
Week 12 for me. I had thought my ms was going away but I was completely wrong. Been a bad week for ms and depression. My house is a total wreck and really bothering me but I have been to sick to do much about it. I just want to start feeling better! I had a horrible headache yesterday probably from dehydration, so I'm working to reverse that not easy when you can't keep much down.

Sparks717 - 100 days ago
Hello to week 12! I will be having an ultrasound this week. Looking forward to that. I didn't have one so early in my last pregnancy. :). I'm definitely feeling the emotions and exhaustion. I'm enjoying pregnancy yoga, it's very least it is whenever DD doesn't decide that it's supposed to be a contact sport. :)

flojoe - 102 days ago
Also had my NT scan and very thing is fine - was marked as low risk - but the highlight was seeing the little one- tiny legs all curled up and hands beside the head on either side .... So exciting and fulfilling it was.... Though the baby was turned around initially they made me stay there for 4 hours till they could see the nasal bone.... Phew! Was that tiring. And the sonographer had to prod and push to get the baby to turn, I get it that she was just doing her job, but now my first c-section scar hurts- should I be concerned?? I don't get to see my doc till next week.

flojoe - 102 days ago
That's nice to know that I am not the only one felling the little one 😁

mommashavin11 - 104 days ago
I have felt it too, as long as I am very still! It can't be anything else.this is baby # 11, so maybe it's from my muscles being lax!lol

mommashavin11 - 104 days ago
I have felt it too, as long as I am very still! It can't be anything else.this is baby # 11, so maybe it's from my muscles being lax!lol

SarahBeth13 - 104 days ago
I have also read that we shouldn't feel it yet... but I am with you and have felt a little thump a few times this past week. Maybe it is just in my head...but it really does feel like baby. I am almost 13 weeks now and for sure felt my first around 14 weeks so I guess it should be happening soon.

flojoe - 104 days ago
Yay! Week 12 from today. This is my second bubba.... And I am just wondering can any of you second or third time mommas feel the baby yet. I thought I felt some movements since last week - nothing clear just a sudden tumble or a poke... But all the literature say it's too early to feel the baby at all.... I know it's wasn't the muscle stretching or ligament pain thing- 'cause that feels different... Hmmmm - just wondering ......

SarahBeth13 - 105 days ago
Hi everyone! I am still here and will try each new week to reach out and see if anyone is up for chatting! I hope you are all doing well if you are out there. Morning sickness was going better early last week and then swooped back in full force right before the weekend. I am back to throwing up daily which I was so hoping would stop by now. Maybe next week? Just glad to be here still! Definitely looking pregnant. In fact, probably way more than I should. This is my third (successful so far) pregnancy and 5th pregnancy so I guess my body just jumped right in, oh well, embrace the bump!! Cheers!

mommashavin11 - 110 days ago
Thanks for the info. Since I'm not having genetic testing or NS done, I'm sure insurance won't just cover the gender part! Guess we have to wait another 6 weeks. Only finding out this time because we cannot figure out names for boy or girl, our family is huge, and running out of names! Lol

lilgibber22 - 110 days ago
Mammashavin11: Maternity21 or the Panoramic are the 2 test used by our doctors' office. My sister has DS so the Chromosome testing is covered by my insurance (gender falls under this test too).

DerbyQueenDill - 113 days ago
Mine has been the hardest yet! Finally starting to feel better thankfully! I asked my dr about including a blood gender test in my NT appointment, but it's not covered and would cost thousands out of pocket! So I'll wait until the 20wk US!

mommashavin11 - 113 days ago
Wow! Congrats, I thought you could only find out that early with amino? What blood test tells you gender? Learn something new everyday!

daffymtz22 - 113 days ago
Oh wow congrats! I didn't know you could find out so early on.

lilgibber22 - 113 days ago
DerbyQueenDill: This pregnancy is such a 180 from my daughter. No sickness or moodiness. Just feel like I'm bloated, but I'll take that. How about you?

DerbyQueenDill - 115 days ago
lilgibber22: Congrats on the boy! How is the pregnancy going overall?

lilgibber22 - 116 days ago
Hello Week 12 and we just found out were going to be having a Boy!!!! We're so excited. Saw that a few of you were talking about blood testing. I have done it with now both of my pregnancies to be able to prepare if we needed to ( and happy to now say that were low risk with this pregnancy too).

DerbyQueenDill - 118 days ago
Hello! Officially 12 weeks today, yay!

SarahMVR - 119 days ago
9 days until I'm in my second trimester..but eh..who is counting.. I look forward and hope I get energy..and that throwing up stops. It will be nice.

monkeymomma - 141 days ago
Good morning 12 weeks!!! For the past 2 nights, I have finally gotten some sleep. Loving this time of the pregnancy! - 154 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 - 155 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. - 155 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 - 155 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 - 156 days ago
Does anyone else have a Nuchal scan booked for this week? I'm on Thursday..

LittleAussieChick - 156 days ago
Today actually marks me at 12 weeks but this site is a day behind the calendar we keep here in Oz.. :)

LittleAussieChick - 156 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 - 158 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. - 158 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 - 158 days ago
Congrats kekea. I wanna start walking. Hope i get energy soon

kekea - 158 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 - 159 days ago
That's horrible i don't wanna know that

1morefor4 - 159 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 - 160 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 - 160 days ago
1morefor4 i have my nt u/s tomorrow. I thought it had to be done between 11 &13 wks

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Members in week 12:
  1. cpineapple2 - 10 Mar 2016
  2. LuvleeRed - 10 Mar 2016
  3. AVG2012 - 11 Mar 2016
  4. Goingcrazywithfour... - 13 Mar 2016
  5. tammommyof3 - 14 Mar 2016
  6. Prilmil - 15 Mar 2016
  7. youngmom01 - 15 Mar 2016
  8. kentsmommy - 16 Mar 2016
  9. TinaLouise - 16 Mar 2016

The due date from members in week 12 is from Wednesday 9 March 2016 up to & including Wednesday 16 March 2016. See the full timeline here

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