Please don't judge...

So I know people are going to judge me but I don't really care at this point. I was a heroin addict for 2 1/2 years and my boyfriend was for 8. We are both clean now and have been for over a year and have been trying to get pregnant but it isn't happening. Could the drug use have made it so my eggs aren't good or his sperm? Is it even possible for us to get pregnant?