Birth weights

[bananapjs]

Hello, I hope I'm posting in the right place...
I have a dd who is nearly 3. Her birth weight was 5lb3oz. Unexplained low birth weight, but otherwise a healthy baby. I had a few growth scans because my amniotic fluid levels were all over the place and she was estimated to be 7.5-8lbs. I know to take this with a pinch of salt as they're never usually accurate.
I'm currently 20 weeks pregnant and having growth scans just because dd was that bit smaller. My question is if you've had a baby with a lower birth weight, or even a bigger baby, was your 2nd , 3rd similar?? Or did they vary?
Just so I have an idea of what to expect!

First daughter: 7.13 (12 days late)
Second daughter: 7.8 (1 day late)

Think they'd have been the same if my second was as late.

DD1 40+4 9lb8
DD2 40+5 9lb2

Both similar, despite me making an effort during second pregnancy to gain less weight. Both now on 25th centile for weight so birth weight was not an indication of future size.

In my case, I just seemed to make very healthy placentas. I took pregnancy vitamins all through so don't know if that made a difference.

Most people I know have not had a great variation of birth weights across their children, but there are always some that do. How far away they are from due date seems to be the biggest factor.