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You are 13 weeks pregnant.

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Born & Birth stories

This is the last week of your first trimester and your baby weighs 14 to 20 grams. The crown-to-rump length of your growing baby is 2.6 to 3.1 inches. Your baby is now about the size of a peach. Fetal growth is amazing from now through about the 24th week of pregnancy.

A 13 week old fetus by SONOReal 3D ultrasound imaging

At this point of your pregnancy, there is a steady flow of pregnancy hormones in your bloodstream. Your body will adjust to the changes and morning sickness might stop and other early symptoms will begin to ease. Because the second trimester is approaching, feelings of anxiety or nervousness may also diminish. You have probably gained some weight by now. You are losing your waist and your clothing is probably fitting snugly.

There is a milky membrane that surrounds your baby. It is pierced by the umbilical cord and is made up of two layers, which are fused together. Your placenta provides most of the nutrients and oxygen that your baby needs. By this week, the placenta is well formed and ready to take over hormone manufacture from your ovaries. The placenta will produce progesterone and estriol. These hormones will be crucial in the maintenance of your pregnancy. Tissue that will form your baby's bones is being laid down, especially around the head and limbs. The nose and chin are becoming more prominent. Your baby's eyelids meet and fuse together and they will not open again for nearly four months. The eyes started out on the side of your baby's head and they are now moving closer together on the face. The ears come to lie in their normal position on the sides of the head. If examined outside of the womb, you will be able to distinguish male from female at this time.

The sockets for all twenty teeth are formed in the gums, and vocal cords are beginning to form.

Comments on week 13

Comments 1-49 of about 703 from week 13
2 messages have been added in the last 24 hours.
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mamatabby - 6 days ago
My stomach is sore to the touch also.. but I was thinking it was were stretch marks could be forming. Boo that. I only get round ligament pains when I'm twist weird or something silly... by the way I'm from wk 15 going to 16 tomorrow. ...

patiently waiting - 7 days ago
my lower stomach is sore to the touch. anyone else having this? They say that round ligament pain gets worse with each pregnancy (this is my 4th)....but i dont remember this! it has been 3 days, almost constant...and radiates from lower to upper side and is focused on the left.

mamatabby - 9 days ago
Yea I'm super excited. :) I want to shop;)

sleepymom - 10 days ago
Mamatabby, hooray for gender ultrasound. I plan on finding out as well. I find it easier to plan, and going through boxes of clothes with two little kids constantly messing up folding and taking things out again drives me bonkers. Happywoman, I am doing good finally me and the kids are over our neverending colds. ARe you going to find out the gender? Glad to hear you can happily eat food again.

sleepymom - 10 days ago
Doda, I'm just too lazy to be bothered with facebook, I barely remember to check my email. If it wasn't for shift work I doubt I would remember to check at all. No pain meds...good for you!!!I get terrible back labour so tho I know I can do without, I still want pain control.

happywoman84 - 12 days ago
Hey sleepymom.. Yeah I have low blood pressure and im not a fan of red meat, I'm a seafood lover. Happy now nausea seems almost I can literally enjoy food Ive eaten 😊 Need to make appointment for ultrasound soon and hope all goes well. How are u and the babies?

mamatabby - 12 days ago
Sleepymom... this is my second baby. I have a 5 year old son. I had him vaginally and plan on this baby being vaginally also. :) I have a appt tomorrow so this will be my second one. I'm pretty excited. I hope I. Get to make gender ultrasound at this appt.:) is everyone going to find out the sex of your baby? I'm going to keep posting on my wk also. In hopes someone answers. :)

doda - 13 days ago
cwatty I may find out gender on December 23 too!!! I say 'may' because they booked me for my anatomy scan for that week (I'm only going to be 16w1d - so if they realize I'm not 18 weeks yet I'm worried they might cancel me - but if not I'm so excited to find out gender for Christmas!!! I plan on doing a gender reveal box filled with balloons under the christmas tree all wrapped up like a present :)

doda - 13 days ago
I wouldn't go on FB if this page wasn't so dead though! I like how this page you go week by week and it's smaller groups of ladies (the people who's week you are in) on FB there's tons of people and you don't really figure out who's who.... but at least there are more people talking :) You need to make a FB account and join! The dilaudid didn't don anything for the pain of contractions just made me really sleepy in between the contractions - with my last two I didn't do any pain meds so maybe I won't get any this time either? I don't know, I kind of don't want to think about it yet! haha

sleepymom - 13 days ago
mamatabby, is this your first or do you have other kids too. are you planning a vaginal or natural delivery? I totally agree about the Facebook thing. It's funny because everyone comments on how dead it is but if people stopped creating Facebook groups this site would be busy again. Personally I don't have a Facebook account and I like the anonymity of this site where I can be part of a 'community' without having to give out too much personal information. The smartphone app is a good idea actually. You should just keep commenting and checking back in my week, at least then we have someone to chat with.

sleepymom - 13 days ago
hey cwatty and mama tabby, glad to see some people commenting! cwatty glad to hear that you are feeling ok, what genders are your other two? what's your guess, boy or girl? are you hoping to have a vaginal delivery or c-section with this one, what did you have with your other kids?

mamatabby - 13 days ago
Hey ladies I'm from 14 wk and going to 15 Tomorrow. I hate that everyone went to FB. I feel if I-A-P had a smart phone app. People would use it more then going to fb. Grrr...

cwatty22 - 15 days ago
I am 13+1 today! I am still feeling sick in the morning but other than that I feel great! This is baby number 3 for us!!! We are going to a place here in Ohio to find out the Gender on Dec 23rd!!!!!

sleepymom - 15 days ago
looks like you gals are going to Facebook, hope to still hear from you on this site.

sleepymom - 15 days ago
happywoman, I am glad I don't get migraines that would be awful. So what can you take for them now? It is a bit of a gap so I see what you mean about it being like your first labour again cause you probably will have forgotten the worst of what the pain was by now. Doda/happywoman, I had natural births for my first two and am hoping to do it that way again. I had an epidural with my first and nothing for my second (but I desperately wanted an epidural it was just too fast for one). If my labour doesn't progress too quickly I will be advocating for an epidural this time!!! Doda- I never tried Dilodid?sp but glad to know it doesn't work. I tried the laughing gas but it just made me nauseous. Doda and Happy woman will you do no pain meds?

babytwee - 16 days ago
Doda- I agree!! I used this site when I was pregnant with my daughter, but the site is not mantained very well anymore and there are SO many FB groups now that most ladies just go there. :)

babytwee - 16 days ago
Honey-moon-surprise- I added you as a friend, once you accept I can then add you to the group! :)

honeymoon-surprise - 17 days ago
Can I be added to the group?? How do I search for it? My name is jade Beddows

babytwee - 17 days ago
Oh btw, I'm Tracy Dextraze Shaver ;)

babytwee - 17 days ago
Movnadia- Sure! I'll send you a friend request. Only friends of members can be added. :) Feel free to delete me after if you want.

movnadia - 18 days ago
Hi I am jumping from week 10 I am also due in june could I please be added? My fb name is Nadia Skordaki

babytwee - 18 days ago
Doda- Hey there! :) I check in from time to time, but I'm mostly on Facebook. There is a secret group for women due in June. If you like I can add you to it, it's an awesome group of ladies and very active.

Doda - 18 days ago
anyone around? so sad how few members there are :(

sher-baby - 71 days ago
alanaw - Cool air wouldn't be bad, but in ON its freezing...only 4 degrees!!!

alanaw - 72 days ago
I'm from Canada, but it has been warm here in NS. I am actually, not enjoying the warm weather..the cool air, feels nicer with this nausea.

sher-baby - 72 days ago
Anyone in here from Canada?? its freezing here...and cold pregnant nipples hurt like hell!!

sher-baby - 73 days ago
YUP!! i just feel like i look gross...deff not sexy!!

supermom87 - 73 days ago
I feel ya sherbaby I been same way for a while now just not interested feeling like I look big as a house 😐

sher-baby - 73 days ago
Lol!! Ok I'm glad I'm not alone! My DH is great too! I don't want to because I look gross! Yuck! I don't wanna see myself naked, let alone anyone else; DH or not! Hopefully it will pass and I'll be back to my normal horn-dog self again! ;)

mandykat760 - 73 days ago
Sex... What's that haha our is bad because of my ms. My husband has been great about it. He did notice every morning after we had sex I was worse than normal. Same with any doctor appointment, I think it has to do with shaking the baby. I actually enjoy sex this time, just can't have it.

mandykat760 - 73 days ago
Shelly, my friend had that with her son. For the life of me I can't remember what it is called but it stopped around 14 weeks.

sher-baby - 74 days ago
Ok personal question!!!! How is everyone's sex life??? Mine is nonexistent...I'm not in the mood at all! I think we've had sex 4 times since I got my bfp, Which is not normal for us...I feel gross...look gross...but poor DH!

supama - 75 days ago
Shelly-hope ur ok!! And Babylove - so jealous of ur trip...really miss the TN mountains this time of year!! Annnnd, yes, totally thought i felt the butterflies of baby movmnt this afternoon. After lunch i was soooo tired i made a small cup of coffee, and totally thought i felt mvmnt after all that...CRAZY. i know it's bc it's #4 & i know what it all feels like, but just crazy bc it's already here.

sher-baby - 75 days ago
Eek Shelly!! That's scary....I really hope it's nothing serious and will correct itself shortly.

shellybelly81 - 75 days ago
i have gained 1 lb so far. went to the ER with bleeding over the weekend, still bleeding. they cant find out what it is, had a few ultrasounds and baby is perfect so we're all a little puzzled, on bed rest for a couple weeks.

sher-baby - 75 days ago
I've gained 5.5lbs as of last Tuesday! I know it's normal but I'm always very cautious about my weight and just seeing it go up, makes me nervous. I haven't had any crazy cravings yet...but when I do want something I usually have to have it!!!

mandykat760 - 75 days ago
Bloody hell I've gained 10lbs so far! Ugh this is what happens when the only thing that cures ms is food.

babylove5 - 76 days ago
I have so many cravings, cabbage, squash, chicken, chips and dip, fries, and ice cream. I had chips and dip for breakfast with 3 eggs. After I ate I was miserable because there is no room in my stomach for that plus the baby, placenta, water, and uterus. It's so not fair I want to eat and enjoy it while I'm pregnant but I just am stuffed and not comfortable. We are off to Gatlinburg tomorrow hopefully the boys will be good.

sher-baby - 76 days ago
I've thought a few times I may have felt something but in all honesty, for me, it's prob gas considering I have been really gassy!!! But I guess anything is possible mandykat!

mandykat760 - 76 days ago
I'm also feeling alil crazy for saying this but I think I feel the baby move. It feels like poping popcorn. Super light tho.

mandykat760 - 76 days ago
I'm getting antsy to buy things but plan on waiting to find out the sex. I keep seeing killer deals on the local yard sell sites but stop myself. I need to move the girls into the same room first so I have storage and space for the new baby.

sher-baby - 77 days ago
For the most part I've been feeling ok. Yesterday though, I had some really bad...almost felt like digestional discomfort. I was soo u comfortable and gassy all night. I would burp and I wasn't sure if I was gonna throw up also...even sleeping was uncomfortable!! It was a rough evening and night for me. Not sure what causes it, but yuck I just felt gross. I've been buying lil onesies here and there and lil hats, and pasies...time is going very fast for me. We may buy a stroller this week.

supama - 77 days ago
Me, too! Where is my energy?? I woke up feeling like cleaning everything....vacuumed & have felt like crap since. Erg

mandykat760 - 77 days ago
Fingers cross my energy returns this week!

supermom87 - 77 days ago
Been a while since I been on here I hope everyone is doing well I went to see a specialist this Thursday the appointment went well baby is doing great but starting at 16wks I have to take preventive measures to keep me from going into preterm labor I knew this was coming though I will be glad to find out what we're having

babylove5 - 78 days ago
I got to see the baby today. It was so cute waving its arm around. It measured 3.5 inches crown to butt. I have the same ultra sound tech as I did for my last two pregnancies! She is going to do a free ultrasound in 2 weeks so I can see If its a boy or a girl!!!!

sher-baby - 79 days ago
13 weeks tomorrow!!!

mandykat760 - 80 days ago
Babylove, take advantage of it while you can. I get the urge to start big projects while pregnant. With my second I restrained all of the woodwork in the house, including the kitchen! Haha

babylove5 - 81 days ago
Does anyone else feel like they are nesting the entire pregnancy? I have a strong desire to get rid of clothes, nick knacks, and pretty much anything that is taking up unnecessary space. I have donated 13 bags of clothes to goodwill. I love clearing stuff out.

babylove5 - 82 days ago
Last week in the first trimester!!! Yay I can't wait to be rid of my nausea!

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Members in week 13:
  1. christina7289 - 21 Jun 2015
  2. christina76900 - 21 Jun 2015
  3. tiktak - 21 Jun 2015
  4. ashangel - 22 Jun 2015
  5. holymotherofgod - 22 Jun 2015
  6. sparkle82 - 22 Jun 2015
  7. lmayaanne - 24 Jun 2015
  8. loralb - 25 Jun 2015
  9. 8blessings - 26 Jun 2015
  10. GaMamaof3 - 26 Jun 2015
  11. kcyc15 - 26 Jun 2015

The due date from members in week 13 is from Sunday 21 June 2015 up to & including Saturday 27 June 2015. See the full timeline here

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