Been trying to get pregnant for two years no success. around day21 of cycle i get dull cramp in belly. after sex on day21 there was bleeding?

What's your question: We declare infertility once a couple has tried regularly w/o any success for over a year to get pregnant. I mention this b/c after 1yr, it's time to go see a reproductive endocrinologist for testing to make sure his sperm is viable and that you're ovulating regularly & have enough Progesterone to sustain a pregnancy. Now is also good time to take prenatal vitamins & start preconception counseling.