32 week ultrasound?

Anyone ever had an ultrasound at 32 weeks? I'll be 32 weeks 3 days at my next appointment. I spoke with my OB today about my concerns with not feeling any attachments to my son and said I thought maybe trying a 4d ultrasound (I got to have a few with my daughter) could help since I haven't gotten one this time around, and he was complete cool with it! Said he doesn't know if it will help but if I want to he is more than willing to do it. So my question is who's done an ultrasound around then? I had one with my daughter at 37 weeks 1day but it was the day I got induced just because they wanted to make sure she was ok to be delivered at that hospital (small hospital) I had preeclampsia as well.