I had a missed m/c last year. I was 10 weeks and I started getting period like cramps, i went to the dr the next day and he thought I had a bit of gastro. Anyway he sent me for a scan and I found out that the baby had died at 7 weeks. I had no other symptoms, and to this day am not really sure the cramping was to do with the miscarriage, or just an upset stomach. They are pretty hard to deal with, but don't let the thought worry you with your pregnancy. You can't control it. Good luck