I had a miscarriage on march 12, since then ive been having irregular periods, and i just cant get pregnant. whats the problem?why cant i ??

MTHFR: Check you and your husbands MTHFR 677 & 1298 genotypes. This one of the main reasons for multiple miscarriages--if there are too many genetic defects, the fetus is aborted. One way to HELP this is to have both of you TREATED with appropriate L-methyl folate instead of folic acid. Throw away your prenatals I'd they have just "folic acid" in them--84% of the population has at least one bad gene.