Well when one has multiple miscarriage and you still want to have children would be good to find out why are you miscarrying. And for that certainly tests needs to be performed. If at least you can get pregnant that is already a good sign so you don't have to go thinking the worst. Be positive. It is very unlikely to be infertile from having abortion. There is many reason for miscarriage from blocked tubes to hormone imbalances. But there is no way to know without testing.

A previous abortion very rarely as has any effect on future child conception abilities. Just keep trying, you'll get there!

I dnt think it has anything to do with the terminaion u had earlier,have u ever been tested for stds? These days u really cant rely on your boyfriend saying hes never cheated thats what mine keep feeding me till i went to get checked to "make sure" and it came up positive since it sounds like your trying to get pregnant now would be a good time for a check up ask for a pap smear and tests for chylmidia/gonnorhea/trichomonas cuz some docs try and be cheap and only test for two out of the 3 stds. start taking vitamins now u AND him and try again