I had 4 with DS, around 14, 20, 34 and 40 weeks. I'm not sure why on the 14, the 34 was to make sure the placenta had moved up because it had been low-lying at 20 weeks, and the 40 week was to check position.
With DD, I had one at 20 weeks. I like that better.
Mommy to DS 8-23-08, DD 9-19-10, and DD 11-25-12. I'm probably