Two in a row - do I need testing...?

[Cricket]

I will discuss this with my family doctor soon, but I wondered if anyone here could share some thoughts/experiences. I have had 7 healthy normal pregnancies, and now 2 miscarriages in a row, at 7 weeks and 10 weeks. Both times the baby stopped developing well before the miscarriage actually occurred. The first time I miscarried, I figured it was just one of those things - I was beating the odds with 7 babies and no trouble. But two in a row makes me worry a little. I am a healthy weight (142lb/64.4kg), eat well, exercise daily, and generally feel well. I am 34. DH and I have no family history of genetic issues, and our children are all healthy and well. What do you think? What questions should I be asking? Should I be asking for specific tests? I'm not quite sure what I need to do here. Any suggestions would be helpful! Thanks!