im not a doctor ( a nurse ) BUT i think i have some info that might shine some light! i was sitting in the docs office yesterday reading a mag and saw a poor woman who had had 18 miscarriages never making it past 7 weeks turns out she had NO folic acid in her body, her body somehow couldnt produce it and at 7 weeks the babys spine is forming and needs this to make the skeleton. They gave her an injection at about 5 weeks or folic acid and walla she had a bub, maybe u should look this up also there is an injection, its very new that u can get for women with recurrent miscarriage that can increase the chances of carrying to term. It stops too much oxygenated blood cells getting into the uterus which is linked to the breakdown of the placenta and spontaneous miscarriage, this is only new to the medical world and still on trial , has been proven to work though i would ask about it, not sure whats its called though maybe google it, im sorry i cannot be of more help havent finished medschool yet!!! i will be devoting my life to women like us who just get shoved in the corner. I wish u all the luck in the world! also maybe u need progesterone supplements once u have concieved, you need to shop around for a new FS!!!