Multiple miscarriages

I'm currently 9 weeks 3 days pregnant. This is the exact time I miscarried my first pregnancy. I'm quite nervous this week... Has anyone who has had more than one miscarriage ever happen at the same time or were you farther along then another? My next appt is in 3 weeks at 12 weeks 1 day but I'm going to try to see if my doctor will let me go in at 10 weeks just to make sure they can hear a heartbeat. I'm praying every day that this baby will get through these next couple weeks. Prayers are appreciated!