I know it runs in my family (my mum has it and we have all been tested also - my sister and I don't have it). My mum had three perfectly normal pregnancies - no miscarriages, I've had two normal ones, no miscarriages, but my sister (who was tested but was in the clear) has had five pregnancies, three fullterm, one stillborn, and one miscarriage.

So don't know if there is a link or not, but doesn't seem to be from my family history? (Actually, the biggest link in my family for anything weird relating to miscarriage, is that my grandmother, my cousin and my sister all have/had trouble with their pregnancies going full term - and they all have auburn hair... mmMMmmmm.. interesting.. )

Good luck TTC. Hopefully the link is just a coincidence.