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Baby weighing 3kg (6.5pounds) at 36 weeks

(28 Posts)
Stilldreamingofsun Tue 04-Oct-16 14:35:05

My doctor seems to think this is big and has slightly upset me today. I am not overweight and have so far put on 2 stone in the pregnancy. No gestational diabetes. Is this really so big? How much larger should baby get at full term? She thinks my pelvis is too small for a vaginal birth. Scared FTM.

Purplefairy21 Tue 04-Oct-16 14:40:36

They put on roughly half a pound a week at that point. Ds was 8lb 4 at 38+3. The day I went into labour I got told at the scan that he might reach 6lb ish by 40 weeks. All my weight gain was baby. I was tiny at the time as well minus the bump and the boobs and had a normal vaginal birth. Hth

FraterculaArctica Tue 04-Oct-16 14:46:25

Doesn't sound huge to me, DD was born at 35+2 weighing 2.58 kg, this was dead on 50th centile

minipie Tue 04-Oct-16 15:06:52

According to the WHO growth charts here, 3kg at 36 weeks is bang on the 75th centile. If the baby carries on at the 75th centile they'd be about 3.8kg (8lb 6) at 40 weeks. So a bit bigger than average but definitely not unusually huge.

But in utero growth scans are notoriously inaccurate anyway.

How does your doctor know the size of your pelvis? Size of your hips is no indicator. It's about the gap in the middle and the particular positioning of your baby.

What kind of doctor is she?

Stilldreamingofsun Tue 04-Oct-16 15:07:54

She's my gynaecologist. She did an internal and a transvaginal scan today.

minipie Tue 04-Oct-16 15:39:36

I think I'd want an opinion from an obstetrician TBH.

My understanding (disclaimer: no medical training!) is that it is very very rare for a woman's pelvis to be too small for natural birth, and it's impossible to tell before labour anyway, because the pelvis expands during labour so nobody can tell how much yours will expand yet.

IamChipmunk Tue 04-Oct-16 15:46:06

My ds was 6lb 11 at birth which is only 9th centile so tiny.

As PP have said I wouldnt pay much attention to can weight. I had a growth scan at 39+6 with Dd and they said 8lb 5.
She was 7lb 4 when born at 40+4!

Ninasimoneinthemorning Tue 04-Oct-16 15:51:42

Hi op your the same as me (36 weeks) although my bump is weighing in at 7lb already.

Dd2 was 9lb 11 when she was born (emergency c-section) and on 91st centile for both weight and height and this one is going the same way.

Have you been offered extra growth scans? I was 'guided' to have another c-section as it all got a bit frantic with dd2 (she was back to back and v.large)

I'm having trouble with my back and ribs how are yours?

ImNotAFlower Tue 04-Oct-16 16:02:34

My second measured 7lb at 37 weeks was born 40+4 weighing 7lb 13oz. I'm not overly confident in a scans accuracy weight wise grin

Stilldreamingofsun Tue 04-Oct-16 16:22:06

Nina- yes- lots of backache and kicking in the ribs. A very active little guy! The head is already measuring full term and my amniotic fluid level is on the lower side also.

Ninasimoneinthemorning Tue 04-Oct-16 16:27:50

Is it? I was wondering about mine as I feel like there is NO space what so ever now. I'm having a growth scan on Thursday so they should be able to see then.

Did they day anything about having a c-section to you or are you going to try vag birth? Dd2 went straight in to 0-3 month clothes and all the new born stuff I donated to the hospital. She looked about 2 months old and I missed the tiny baby!

Ninasimoneinthemorning Tue 04-Oct-16 16:29:53

Are you under consultant led care?

Stilldreamingofsun Tue 04-Oct-16 16:33:45

Yes- she will deliver the baby. She wants to book in a c section due to the size of the head and the low amniotic fluid

ImSoTakei Tue 04-Oct-16 16:37:35

I wouldn't worry, I was told based on 36 a week scan and measurments that my son was going to be around 10lbs full term. He was born on his due date 7lbs11oz.

FlatWhiteToGo Tue 04-Oct-16 16:38:56

That doesn't sound massive to me. Try not to worry! I'm 38 weeks and at 36 weeks a growth scan showed my baby was 95th centile and over 7lbs. The consultant said that wasn't a massive baby and she would recommend a natural birth over a section. She also said there's no way of knowing how big your pelvis will go until you're actually in labour. I'm terrified, but all of the professionals keep saying there is nothing to worry about.

wineusuallyhelps Tue 04-Oct-16 16:42:38

Try not to worry. Growth scans and midwife checks are very inaccurate in my experience. I was told my first baby was 7.5 lbs and he was born 3 days later at 9lb 6oz (not that I'm saying yours will be bigger, but just to illustrate the point! I'm sure other babies turn out a lot smaller than predicted!). Also my second baby was again thought to be average size and he was 9lb 9.5oz....they can't tell.

TheFairyCaravan Tue 04-Oct-16 16:43:05

It doesnt sound that big to me. Please don't worry.

DS2 was 8lbs, 60cm long and had a 38cm head when he was born at 37 weeks. I only put on 11lb during my pregnancy. I'd had a scan 2 weeks before and was told he was going to be small. hmm

Ninasimoneinthemorning Tue 04-Oct-16 16:45:37

still you lucky thing! Have you got a date yet? I get told on Thursday but I think it's going to be around the 21st. I can't cope with the back ache and sore ribs now.

Don't be worried if the baby is big - it's not as if she will be humongous and if she is normal size then there is no harm done at least they were monitoring you properly.

Stilldreamingofsun Tue 04-Oct-16 16:48:28

Yes- I think it's going to be 24th or 25th so around the same time as you! I'm feeling a lot more relieved now! And thank god baby is healthy and big- could be so much worse.

WiIdfire Tue 04-Oct-16 16:52:51

Mine was 7lb4 at 36 weeks. Born 11lb2 at 42 weeks, natural birth, no damage to the pelvic floor. You never know.

Nikki2ol6 Tue 04-Oct-16 17:02:51

Babies gain half a pound a week from 36 weeks so if you reach 40 weeks your looking at 8.5lb which now a days is fairly average! My first baby was 8lbs6 and I did have issues as I'm small and my labour was awful. However it may not have been because of her weight because my next baby was almost 10lbs and came out no problem

Lunde Tue 04-Oct-16 17:11:02

Both of my babies were estimated at 3kg at 36 weeks
DD1 was born at 42 weeks - 8lb 3 oz
DD2 was born at 38+3 7lbs 10oz

I was warned that growth scans are very innaccurate in late pregnancy

LoveMyRs Tue 04-Oct-16 17:42:23

First don't worry, and everyone is different.
I would take my consultant advice.
I am not sure if you are in the uk, but here they won't advise for a c section unless its better for both mum n baby.

Ninasimoneinthemorning Tue 04-Oct-16 18:58:48

my dates are 21st or 24th as its weekend in between when I'm Bob on 39 weeks. Your not in N/W are you we could be in the same ward! grin

We would have been having Halloween babies otherwise which I don't think is a good omen! wink

Stilldreamingofsun Wed 05-Oct-16 08:16:34

No- I'm not in the uk. I'm in a country where people are smaller in general so that probably explains the gynaecologists horror at the 3kg. Just spoke to my mum and my sister and brother were both almost 9 pounds so I think it's in the family to have big healthy babies! Good luck with everything!

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