This is my second pregnancy, I was 17 when I got pregnant in September of 2014 and that pregnancy ended in a miscarriage. We weren't sure if it had anything to do with my blood type or if it was caused by not enough chromosomes. I am RH- and my fiancé is positive. It is hard to look up any information because it really is rare to have RH- blood and there just isn't any info on the internet! With my last pregnancy, the hospital said it was a big deal. With this pregnancy I decided to go to a different hospital and they are saying it's nbd and I just get my RhoGam shot at 28 weeks. I am 10 weeks 3 days and this is my second pregnancy. This baby seems to be very healthy. It had a heart beat of 176 and was moving around like crazy on the ultrasound. I haven't had any bleeding and very light cramping.