I had both of mine around 29 weeks. If you wait too long, the baby is too big and has less room...making it more difficult to get a good shot. I can't remember what my dr recommends, but I do know I was in the range.
Allie ~ 01/26/09 ~ 7 lbs, 9 oz ~ 20.75 in.
& Amelia ~ 03/16/11 ~ 8 lbs, 1 oz ~ 21 in.
I had mine at 28 weeks both times. With DS, his was so easy...he wasn't much of a big mover so we got great pictures and video. With baby girl last week, completely different story She moves all over the place and made it hard on the tech.
Re: When to have 4d ultrasound?
I think my dr recommended 28-32 weeks I went at 30 wks.
This exactly
This!!