I ended up having 4. I had the first one at 8w6d (the dating ultrasound, to make sure everything looked okay). Then I had the one around 20 weeks, where they look at the baby more closely. They had trouble seeing a few things and wanted a better look at his legs and kidneys, so we had another one scheduled a few weeks after that (he was totally fine). And then we had a 4-D ultrasound for fun, it was free. I'd have to look at the pictures to see when we did it, but I think it was around 27 or 28 weeks?
Mommy to Grant (July 2010) and Greta (July 2012)
I purged 2,920 items in 2012! Working on 2,013 items for 2013.