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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 492 from week 13
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jojo09 1 pink 1 blue - 5.2 hours ago
Week 13...wooohooo...r u as quiet as the rest?!! Haha Bonita, I havent gone full term in either pregnacies - 39wks & 37wks so I wud b suprised if this was a full length one haha xx

bonitadiane - 2 days ago
Hello week 13. Wow, this pregnancy seems to be going quick. So happy to be here!!

glowingwith2 - 6 days ago
Fun! I love Queensland... My husband and I used to say 'we landed in the wrong place'. We loved the Gold Coast. So pretty. Lucky lady! ;)

Mrsaussiemumma - 7 days ago
glowingwith2, Thanks for the welcome. I am in Queensland, so quiet a few hours away from Sydney. :)

glowingwith2 - 7 days ago
Mrsaussie, welcome to the group! Where abouts in Aus are you? I'm so jealous... My first was born in Sydney. We returned to the US shortly before her second birthday. I love that country! P

Mrsaussiemumma - 7 days ago
Hello Ladies! It's my first time posting with this pregnancy, I wanted to wait until I knew everything was ok with bub before I posted because I didn't want to jinx anything so here we are. Yay! Hope everyone is doing well. :)

afshanm07 - 8 days ago
When i asked about the baby gender here in usa .she told me well its too early come in june ugg. I have two girls first then two boys so my hubby wants a boy i dont know yet will it be ugg. As long as it is healthy. Good luck glowingwith2

afshanm07 - 8 days ago
Well week 13 finally

snooks - 9 days ago
OMG! Progesterone Migraine time. Ice on my neck. I'm miserable and my kids are running wild. Ugh.

snooks - 9 days ago
I wasn't offered gender test when I had my Harmony Test.:( It is a new test in Canada and I actually called my OB to have them arrange it for me. I only spoke to the receptionist and don't actually have my first appt with the Doctor until May 1st. I'm going to give her a nudge about it. Lol! Oh well. Guess I have to wait just like the rest of you.

glowingwith2 - 9 days ago
Blonde, Oh no!! I hope your morning sickness gets better soon. You've really had a tough go it seems like. Finally got my ultrasound today. The baby looks great, the NT was measuring normal which was good news. They also said I'm now measuring 5 days ahead and that it's far enough off they should almost move my due date. That would put me closer to 14 weeks now. The baby seemed big in the ultrasound. So exciting!!! I find out the gender in 3 and a half weeks. Now that will be something to be excited about. :)

blondeabby - 9 days ago
Feeling really really crappy today. Back on the bathroom floor at work:(

glowingwith2 - 10 days ago
Long car rides terrify me when I'm pregnant. I always have to pee! And I'm always thirsty. Maybe it will not be so bad now that we are nearing 2nd tri. Off to bed for me. It was a busy day and the whole house is asleep by 8:30. Miricle!

blondeabby - 11 days ago
Made it to 13 weeks:) Woke up with a sore throat. Not how I want to celebrate:(. Hopefully I will hear back about some of the testing I had last week. Hopefully this week will be better then last. I am going on an eleven hour car ride on Thursday and then again on Monday.

glowingwith2 - 11 days ago
13 weeks!! Feeling great!! Looking forward to seeing baby on Tuesday. I haven't had an ultrasound in 7 weeks! Baby was so tiny then. :)

My3rdbundleofjoy - 14 days ago
Beckym I'm sorry to hear that I hope everything go well. It happen to me I was so upset I went to to the ER I wanted to make sure the Dr. Was rite about no heartbeat. I had to get the D&C at 8 weeks. You have came a long way hopefully things work out you I'm. Praying for u.

mammaramirez - 16 days ago
beckym - I hope you're able to get a final answer on everything soon. I'm sure you're stressing over this constantly. I know I would be. Still praying. Hang in there!!

beckym - 16 days ago
Sorry it took me a little while to write this, I was so tired on my way home, as soon as I got in the house I fell asleep, I am awake now at 4:30am writing this. They couldn't do the 3D/4D ultrasound, the image wasn't clear enough, I guess because of the anterior placenta. The 2D ultrasound came through with a silouette, but sketchy. She couldn't get me a heartbeat, and the silouette wasn't dancing around, stayed in the same spot the whole time, but it was sketchy enough that I am unsure still, it wasn't enough to know for a fact. They won't do blood work with my doctor's office, like what lil pigz said, the hcg pregnancy hormone levels begin to lower at this time in pregnancy anyway so it wouldn't mean the same as in the beginning of the pregnancy. I am going to change my Doctor Second Opinion Ultrasound from Monday the 14th to Wednesday or Thursday of this week. The 3D/4D ultrasound couldn't see through my belly and can't do Internal Ultrasounds, so those are my best bet right now. If we still can't see clear enough, I am going to push for a third doctor ultrasound. There is the possiblility that my child sleeps like I do, and for both ultrasounds was very tired, babies do sleep alot. I don't know. I am discouraged, but yet also hopeful as well, I wish I had my own ultrasound machine, instead of these dumb doctors trying to play god with my child. I wish I had a 100% answer today, but I still can't say I do. Still waiting...

xobrittany - 16 days ago
Sorry ladies I don't pop in here very often, mostly hang out on fb. Becky, I am so sorry to hear about what you are going through. I hope for the best possible outcome for you!

dmmarinewife - 17 days ago
Thank you Becky I will keep you in my thoughts and prayers today for the best possible outcome.

beckym - 17 days ago
I am scheduling the 3D/4D ultrasound for today, then I think we will know for sure. Thank you for your support ladies, dmmarinewife, I am so sorry for your loss, I will post later tonight, I am trying to get the 8pm apt so my DH doesn't miss any work to get to the ultrasound.

dmmarinewife - 17 days ago
Becky- I'm so sorry that you are going through this. I went through this at 9 weeks and Occassionally check on the chat. I had my hcg monitored as well for confirmation and ultrasound before scheduling the d&c and actually the day of the d&c I started passing my baby girl naturally but then went through with the d&c bc I was torn emotionally. I pray this is not your outcome and you have peace and comfort with whichever decision god chooses for your special baby.

mammaramirez - 17 days ago
Beckym - I'll keep you and your family in my prayers. Hope the doctor was wrong.

loriandRichie - 17 days ago
Becky I'm so sorry to hear this. I'll keep you in my prayers.

beckym - 19 days ago
I know this is depressing, and for me, this is the journey I am facing, hope you ladies will be understanding that I will want to stay with you until I know for sure what is going on, I don't want to give up on hope just yet, they can be wrong, and have been in the past with other people. Thank you, and I hope you understand.

beckym - 20 days ago
mammaramirez - Lists are always good, especially during our most forgetful parts of pregnancy, but I never had a chance to address my list this time, as they didn't find the heartbeat, then found out that my placenta is forward, so did an ultrasound, and couldn't get a good picture, then did an internal ultrasound and saw the baby, but no heartbeat. They are talking about a d & e, but it is so final, I am clinging to hope that they are wrong, we are going not this Monday but next, for a second opinion. My Aunt had been told that there was no heartbeat, and she refused to let them take the baby, and went full term with a healthy baby born. My own mother was in a car accident 9 months pregnant with my brother, they did an ultrasound and couldn't find a heartbeat, she was devastated, a lot of emotional grief, and then he was born, alive and well. They are known to make mistakes, and that is what is keeping me going right now, if I let them just take the baby, and found out they were alive, I couldn't live with myself, I have to be 200% sure. I never had a miscarriage before, and this is surreal, I hope to god they are wrong. Please keep me in your prayers. I know that god has a plan for all of us, and his plan may be for my baby to stay with him, but I would like to hope that his plan has my baby here with me, maybe it is selfish, but I look at my 2 year old and couldn't imagine life without her, I am not sure if I could bare losing this little one.

mammaramirez - 20 days ago
beckym - that's a good idea, idk why I never thought of that... maybe I should make a list of questions too.. I always forget and then get mad because I'll have to wait another 4 weeks to ask them again lol

beckym - 20 days ago
Doc apt today, we will get to hear the heartbeat, writing down questions I want to ask.

beckym - 21 days ago
mammaramirez - That is a very good point, I guess I pushed it far from my mind from the start because of how offensive a thought it was on how they delivered suggesting it to me in the beginning, they were suggesting it as an optional know before so you can abort, it was insane! You make a very good point, it would be better to know ahead to prepare for if you will have a child that needs extra care. I think I will have the testing done after all, but not as an abortion option, thank you for your insight. :)

mammaramirez - 22 days ago
beckym - I opted for the testing... most parents I know who do the testing is not to decide to abort the pregnancy if anything is wrong, but to better prepare themselves for the proper care of their baby should anything be wrong. To me it is better to know up front of any issues rather than be blindsided by issues later.

ohsolovely - 22 days ago
happy 13 weeks to me!!!

beckym - 22 days ago
It feels like the weeks are flying by now. TA77 - I opted out of the fetal testing for the abnormalities as well, the first time they suggested this, like for down syndrome and all those other things, was so the parents had the option of aborting the pregnancy, I felt that was something I would never do, so I wouldn't even want to have the test. It actually offended me, like they were giving me an axe and saying here, if you want kill your kid. This is a joyous time and I didn't want to tarnish that with even entertaining the idea in any way. So every time they ask I immediately say no, I don't even let them go into their spiel. If our children have any abnormalities, we will work with them. I'm certainly not perfect and don't expect that of my children, they amaze me every day, but are certainly not perfect.

TA77 - 26 days ago
Moving to 14 weeks tomorrow :-)

TA77 - 26 days ago
I don't have my anatomy scan till the 7th of may. I will be 19+3. I opted out of the NT scan, for me personally it would just be a waste of resources as the likelyhood of my baby having a detectable chromosomal problem is less than .5% and I probably wouldn't do anything with the results either. My next Appointment isn't until the week after the scan anyway and the midwives clinic doesn't have a portable ultrasound machine so I am happy with the 7th. I would like to hear the heart beat though, haven't been given the opportunity to hear it yet. - 26 days ago
My anatomy scan is not until May 19th. Ugh....that's too long. I wish they would do it at my April 21st appointment. I'll be 16 weeks so I know that wouldn't be too early. I think I had my anatomy scan with my DS at 17 or 18 weeks.

loriandRichie - 27 days ago
I had my NT scan today and am relieved to report it was negative. I feel so much better now. Also...they were able to tell me it's a GIRL! another little princess! :)

loriandRichie - 27 days ago
I'm so sorry for your loss TA77

TA77 - 28 days ago
Hi all sorry I have been out for a few days, my Grandmother passed away yesterday. We spent everyday with her in the weeks leading up to it but she was in hospital the last 3 days of her life surrounded by family.

loriandRichie - 29 days ago
Hello mommies! I had my ob appt today and got to hear heartbeat! I can't believe how emotional it made me. I feel so blessed with this one. MomIIb,I'm so glad your scan went well. I have mine Thursday. I can't wait to see baby :)

MOMIIB - 31 days ago
Thabks for asking TA77!!! My NT test (sonogram) went well, I should have results in 10 business days :-) Baby was super active, kicking, punching and even did a hand stand LOL! I was definitely an entertaining sonogram! I just wish I could feel movement, hopefully its not too far away. I have gained 6lbs since my 8wk dr appt and total of 10lbs since I found out according to my scale. Not happy about it but there isnt much I can do. Just gonna try to eat as healthy as I can. Next OB appt is in 4wks but we will be paying for a gender scan at very excited. Everyone thinks o am having a girl, but we'll see ;-) Hope everyone is doing well!!!!

TA77 - 33 days ago
Move to 13 weeks in about 2 1/2 hours. MOMIIB, how did your Sono go? Hope everyone is well.

MOMIIB - 35 days ago
13wks today, NT sonogram and OB appointment tomorrow :-) so excited :-)

mommyinmd - 38 days ago
Hi Ladies, I wanted to pass along some info I think may be helpful. When I was pregnant I had horrible skin problems. I found an awesome healing and concealing make-up. The minerals in it healed my skin, it has no irritants like bismuth which most other mineral make-ups do, and the concealer was a miracle worker to make my skin look flawless during these crazy hormonal days. You can look at my page to see a before and after picture. Then message me if you'd like more info. I can get you 25% off.

inkdoll - 42 days ago
hi mommies if you would like to be added to the FB group let me know in a private message with your email and ill invite you :)

soontobebusymomto4 - 42 days ago
Joining 13 weeks today, 27 weeks to go! Started feeling little flutters at night when lying down. Had my first ultrasound on tuesday and everything is looking good. Was reassuring to finally see this little baby and know that everything was good with the baby.

mommy97101114 - 42 days ago
finally got the results yesterday morning on my bloodwork (Maternet 21 Plus) & with a thankful heart everything came back normal.....and it's a BOY! After three girls finally being blessed with a son.

mommy97101114 - 42 days ago
lisamomof7tobe-this site just doesn't seem to be as active as it use to be. :(

lisamomof7tobe - 42 days ago
Wow, no one has said anything for 7 whole days! Well, I guess I might be talking to myself! lol! I think I have felt a little fluttering already! That is always my favorite part! love feeling the baby moving!

mommy97101114 - 49 days ago
Hello week 13! 27 more to go...anxious for my results to come back on the Maternit21 Plus blood work to come back. I still have not felt movement yet. That is my favorite part in pregnancy when you start feeling your baby moving.

hbomb - 50 days ago
Hi everyone I am just a couple days over13 wks and still have the sickness headaches and whtnot but my stomach bloating and any pregnant feeling i had in my stomach has gone away about 4 days now. This is my second baby and i was sure i was feeling little baby squirming at 12 wks, only for that wk then at almost 13 wks the squirming is gone.. bloating gone?? No bleeding or cramping thank goodness,, but whats going on??? Am i worried for nothing?

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Members in week 13:
  1. greeneyes030 - 24 Oct 2014
  2. littleonesmum - 24 Oct 2014
  3. winterbaby11 - 24 Oct 2014
  4. christinapereira - 25 Oct 2014
  5. lmayaanne - 25 Oct 2014
  6. pregnant87 - 25 Oct 2014
  7. Tiffanyoconnor - 25 Oct 2014
  8. Jenn80 - 26 Oct 2014
  9. mll28 - 26 Oct 2014
  10. mayathebee - 27 Oct 2014
  11. bonitadiane - 28 Oct 2014
  12. lmatheny - 28 Oct 2014
  13. Rae-Rae1 - 29 Oct 2014
  14. joesgirl321 - 30 Oct 2014
  15. jojo09 1 pink 1 bl... - 30 Oct 2014

The due date from members in week 13 is from Friday 24 October 2014 up to & including Thursday 30 October 2014. See the full timeline here

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