How accurate is the weight they estimate your baby?

Question

Yest. I had a non-stress test, the baby wasnt moving enough so I had to have an ultrasound done this morning, they estimated the baby was 7ibs 0oz. How accurate is this weight?

I'm 40w5d

Answer 1

my doctor was pretty accurate with my first.. at 37 weeks he said 5 pounds...   and she came out 4.11....  ultrasounds can be off by a pound either way.  

Answer 2

My dr. said 7 lb by the size of me, and he came out 7lb even.  

Answer 3

a JOKE.. a BIG HAHAHAHAHAHA... at 38weeks they said he was 8pounds1oz  .... so the DR 3.5 weeks later was all we need a C_Section cuz hes going to be TOO BIG... im like.. No. id like to TRY a natural birth 1st please...  Shes all WELL FINE!! hes going to be to big so you can be in pain for a few hours and we will do a CSection then (HER EXACT WORDS!)....

i gave birth to a 9 pound 10oz boy naturaly...  

crappy Dr's  were saying he was going to be 11-12pounds+

Answer 4

I would guess fairly accurate or they wouldn't do it.  

Answer 5

I think I've read somewhere that they can be off by up to 20%.  With my first, they said he was 6lbs+ 2 weeks before he was born, and he came out weighing 5lbs 13oz.

Answer 6

Depends on what method they used to guess the baby's weight, Just by size of belly or externally feeling it..can be off by a lb or so. Regular ol' u/s just looking at baby and guessing, same. If they do the good u/s where they actually measure the bones, and lengthes those are pretty accurate

Answer 7

they was wrong with mine, they said he was about 1lb smaller than he actually was

Answer 8

With my first they were only off by 4oz.

Answer 9

doc said no more than 5.5 pounds. he was 7 lbs 12 oz!!!!

Answer 10

My doctor has always been very accurate; off by an ounce or two! With all 3 of my babies! She will give an estimate for this last one, soon. (And, this is without ultrasound: she simply pushes on my belly, and guesses.)

Answer 11

In my experience it wasn't accurate. And it usually isn't when done later in pregnancy. I was told at 37 weeks that my baby was 7.5 lbs and to expect a 9+ pound baby. He came out weighing 7 lbs. 3 oz.