I asked my doctor about testing the fetal tissue and with my only d&c, I had been bleeding for a while and the doctor who did it knew my husband and told him there was barley anything there, during this last m/c (I did it naturally at 11 weeks, put me in labor for 2 hours and I WILL NEVER DO THAT AGAIN, the baby was little but the placenta was not) I did ask the doctor, but by the time the babies faint heartbeat quit at 9-10 weeks, it had shrank down to about 5 weeks and she said there was not enough tissue to really test from that. I might consider asking her if I miscarry again as my DH told me last night that if it does happen I will not be doing it naturally b/c it scared that crap out of him, so I would have a d&c and if it's possible I will have it tested. Hopefully I will not have to do that and I do have my rainbow baby! I will not do any testing while I'm pregnant though, if I were to have a genetic issue that cannot be fixed, that would cause a very stressfull pregnancy. I am realitivly young too...okay, actually I'm a baby, 23!