usually they will check whenever you have an ultrasound they will measure the baby's different body parts and come up with an estimated size, but as you know we are usually limited in u/s through out. So they measure your fundamental growth.When they take the measuring tape and measure your belly from your pubic bone to the top of your belly. the amount of cm shoud match how many months you are. This showa they baby is growing on schedule. If your recieving theses your Doc may not betelling you the measurment because he isnt concerned, if you aren't recieving these ask how hes checking growth.
Most likely only if there's a discrepancy between your due date and how big your belly is measuring. I had growth scans and turns out my LO was bigger than they thought! So they're not always accurate either.
Just wanted to add, experienced doctors can often "estimate" size (larger than average, smaller than average, etc, not necessarily give you a weight estimate) just by feeling your belly. My last two appointments, my doctor has felt my stomach and commented about how big LO is. We've known he was larger since about 25 weeks and I have received ultrasounds confirming this. Doctor has commented "well, you've got a big one, but he's not abnormally large" just from pressing on my stomach when he's checking LO's position. So, even if you don't get a growth ultrasound, you can always ask your doctor what he thinks of LOs size.
Just wanted to add, experienced doctors can often "estimate" size (larger than average, smaller than average, etc, not necessarily give you a weight estimate) just by feeling your belly. My last two appointments, my doctor has felt my stomach and commented about how big LO is. We've known he was larger since about 25 weeks and I have received ultrasounds confirming this. Doctor has commented "well, you've got a big one, but he's not abnormally large" just from pressing on my stomach when he's checking LO's position. So, even if you don't get a growth ultrasound, you can always ask your doctor what he thinks of LOs size.
This! My doctor did this yesterday during my internal exam. We were actually all thinking that he was going to be huge because my DH was over 10lbs when he was born. My doc felt my stomach and said "Oh, well it seems that he is about 6 lbs right now". I was so relieved! haha I mean he can be off a lb or so but it made me feel better that LO wasn't 8 lbs right now haha
This is my third baby but this pregnancy is the first I've ever had a growth ultrasound and it is only because I have GD this time. Usually you just wait and see when baby comes!
Unless you need an ultra sound my doctors office does not check for size. I was disapointed with my first, and figured I would not know for this one either. Which was odd to me because it always seemed like friends were told how big their baby was gonna be. There is no real way to tell unless they do an ultrasound so I think my office just does not like to give out info that may not be accurate.
I told my doc I was paranoid that because my stomach is so big (I feel huge) that I am going to have a 10 pound baby. (a friend just did and her newborn seemed HUGE). He said I would not have a 5 pound baby but he was pretty certain my baby would not be 9/10 pounds. We shall see. My first was 7.9 at 39 weeks. I am figuring a pound heavier but hoping for less.
Re: when will they check for size?
sorry for all the spelling errors... jeez!
stupid work comuter...
This! My doctor did this yesterday during my internal exam. We were actually all thinking that he was going to be huge because my DH was over 10lbs when he was born. My doc felt my stomach and said "Oh, well it seems that he is about 6 lbs right now". I was so relieved! haha I mean he can be off a lb or so but it made me feel better that LO wasn't 8 lbs right now haha
Unless you need an ultra sound my doctors office does not check for size. I was disapointed with my first, and figured I would not know for this one either. Which was odd to me because it always seemed like friends were told how big their baby was gonna be. There is no real way to tell unless they do an ultrasound so I think my office just does not like to give out info that may not be accurate.
I told my doc I was paranoid that because my stomach is so big (I feel huge) that I am going to have a 10 pound baby. (a friend just did and her newborn seemed HUGE). He said I would not have a 5 pound baby but he was pretty certain my baby would not be 9/10 pounds. We shall see. My first was 7.9 at 39 weeks. I am figuring a pound heavier but hoping for less.