Past abortion

I had an abortion almost 6 years ago and 4 years ago. Been off birth control for 3 years now and still have not gotten pregnant again. Been actually trying for the last year. What the heck is wrong with me that I can't now get pregnant when I want to?! Could this be because of the abortions? I always think about it and regret my choices now but I was too young and not ready than. :(