I had an u/s 4/17/07 and they said I was 7wks 3dys yet no heartbeat was heard or seen in the u/s. I go in for another u/s 4/24/07, 1wk later. I'm so worried I've miscarried, but since ovulation happens 2wks after your period (my last period 3/25/07) my conception date is around 4/8/07 so could it be too early? My baby fetus would really only be 5wks 3dys old now wouldn't it?