WeMoms
12 Mar 2024

Your baby's size and weight

It is important to know that each fetus has its own development pace, and only your gynecologist can confirm that your baby is healthy.

When you have your ultrasound appointment with your doctor, they will calculate the approximate height and weight of your baby. The fetus is measured from head to heel. These are the average measurements that you will receive.

It is estimated that the baby weighs and measures:

  • Between 0.03 and 0.19 in during the 1st month of pregnancy;
  • Between 4 and 5 in and between 0.24 and 0.44 lb during the 4th month of pregnancy;
  • Between 15 and 17 in and between 3.7 and 4.8 lb in the 8th month of pregnancy;
  • Between 17.7 and 19.7 in and between 5.2 and 7.2 lb before term.
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Danielle
30 Jan 2024

Did my ultrasound test n my lil one is weighing at 3lbs 😭 but everything else was good he's on the smaller size is pray my baby boy gain weight ... I wish I never had high blood pressure never had this problem until now

4 comments
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Danaysia
🙏🏾🙏🏾🙏🏾
30 Jan 2024

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Danaysia
everything is gonna be okay mama!
30 Jan 2024

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JOANA
13 Jan 2024

First time mom here..... I had an ultrasound on January 10th, and the lady said that Baby Girl is measuring 2lbs something..... My due date is April 27th, but the lady told me that the weight and size of baby girl is putting me 2 weeks ahead to April 16th.... My Question.... What is the "Normal" or Average weight of a 25 week baby??????

3 comments
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Sierra
I’m 25 weeks and baby is 48% percentile. 1lb 7oz.
13 Jan 2024

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Nelly
Idk what the normal is but don't stress about it. Your baby is growing and is healthy that's all that really matters. Remember ultrasounds are just a guestimation. All of my babies measured ahead. They thought my 4th baby was going to be big and he turned out to be the only average size baby I had🙃.
13 Jan 2024

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🥰♥️Katy Tommy's Mommy
26 Aug 2023

Left is diaper size right is baby(ies) weight when Tommy was born he weighed 8lbs 15oz but fit size 1 diapers... Now he's 18lbs and wearing a size 4 diaper...I guess the size your baby wears depends on how chunky baby is Tommy can technically still fit size 3, but when he pees in them while sleeping it starts sliding off his hips...

6 comments
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Xena
I'm going to point out the weight doesn't matter that much for babies. My son is in size 6 and he doesn't weigh 35 pounds. He is 26 pounds. But he is just so super tall which takes in consideration for it as well.
26 Aug 2023

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Danielle 🦦🪷
We’re in size 4 and she’s only 19lbs
26 Aug 2023

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Vee
7 Jul 2023

My stomach is huge! It looks like I’m having twins. I had my #38week appointment today and the doctor said based on the size of my stomach, it looks like the baby will weight around 8 1/2 to 9 pounds! Yikes! Thank goodness I’m having a C-section. Does the size of the stomach mean you’ll have a huge baby? My husband and I are both thin; not sure if that matters #Bigbabyboy

10 comments
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Makayla
Now I gotta see the belly!? I started out at 120 and went to 170 I feel hugeee!! And I think my son will be around 8 surely by 39 weeks
7 Jul 2023

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Vee
Girl I’m big! lol look
7 Jul 2023

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Tashawnna
11 Jun 2023

Never realized but looked up a fetus weight chart and my boy tayden is weighing 3 oz bigger then the normal weight of 7 oz he's 10 oz average to the size of 20 weeks pregnant I'm only close to 19 weeks pregnant any one measuring a week ahead just curious 🤔

1 comments

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Valerie
5 Jun 2023

They said my baby is gonna be 9lbs according to the size of his stomach, what did they say about your babies weight and when your baby was born was it accurate ?

24 comments
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Valerie
Not that it matters because I’m having a c section in 11 days so the weight really don’t matter but I was curious how other peoples experiences were with it.
5 Jun 2023

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Blocked user
Always say my babies gon be huge. They just be tryn scare me. They were average sized babies. Even the gd baby. Those scans are notorious for being off esp late in pregnancy. They push moms into thinking their babies will be "too big" instead of encouraging us that our baby is perfect 4our body bc we grew it
5 Jun 2023

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🍹Jenni
4 Mar 2023

According to my pregnancy + app this is the size and weight of the average baby at 20 wks! I thought it baby was much smaller, it’s just amazing!!

9 comments
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🍹Jenni
10.08 inches and almost 11oz
4 Mar 2023

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🍹Jenni
Yes I agree!
4 Mar 2023

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Ayanna
6 Jan 2023

I have only gained 1 pound since the beginning of pregnancy I am so scared to gain weight because I’m over 300 and plus size even though I will be on the road to weight loss surgery after baby it’s still very scary who else is in this ball game

5 comments
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Meghan
I had weight loss surgery a year ago. Recently found out I was pregnant.It’s been an emotional roller coaster. The thought of gaining weight makes me anxious and depressed. I worked so hard to get to where I am and now I feel like I done all this hard work for nothing. This pregnancy was a major surprise for us considering I was on birth control and it still managed to happen lol. I was even scheduled to have skin removal next month. So I get where you are coming from. I’m so afraid to gain bc what if I can’t get the weight back off after. I started out at 260 before weight loss surgery and was down to 183 before pregnancy. Now I’m 195 and I just want to cry.
6 Jan 2023

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Ayanna
Omg good job momma that’s excellent weight has always been a issue for me and I was approved for surgery was in process and then gt pregnant now I’m determined after baby to get back on tract I want to start working out during pregnancy I will start back in February to see if I can maintain my weight I try to eat healthy majority of the time but then again I crave junk food I was shocked when she told me I only gained a pound like u said i don’t want to gain cause I know it will def take a toll on my body and I be out of breath now I’m 331 and that is a lot of weight already I just want to find myself again and be happy and extremely confident and proud of myself
6 Jan 2023

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Kristina
28 May 2022

First time Mom calling out second third time moms how much did your babies weight at Birth and need advice on diaper sizes I have one pack of newborn just a small pack of like 30 something and then I have size 2 and size 4 as of right now did your babies ever skip sizes I've been gaining too much weight throughout this pregnancy so I think the baby's going to be like 8 lb just need advice on diapers my mother-in-law just got me two and four and I was wondering do I still need to buy size one if I'm going to have a big baby I find out next week but the doctor said most likely she's going to be about 8 oz or more

6 comments
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Chavon
I Would Recommend Getting Another Pack Of Newborn And Size One .
28 May 2022

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Destiny
Yeah my son was 8lbs 14oz and he was able to wear newborn for almost a month I’ll say like 3weeks then size one basically did good with him size two may be a little too big for a newborn I’m not too sure but from experience sometimes if the pamper a little too small or big it’s easier for the pee and poop to make a way out lol
28 May 2022

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Angie
29 Nov 2021

Going grocery shopping next Thursday. Please spam me with healthy/tasty treats and snacks. I was losing weight and lost 54 lbs but now it's harder to tell myself no. Gaining weight with baby is expected. But I was a size 4 10 yrs ago, got pregnant and remembered how much I love food and have struggled ever since. Please help!!

2 comments
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Monique
Berries, apples, yogurts, crackers, peanut butter , carrot or celery sticks🤍
29 Nov 2021

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