Can't get pregnant...

So about 3 years ago I fell pregnant with my boyfriend, we both knew we couldn't keep this child as I had a lot going on with education and everything and he already had a child so we did was we thought was best and had an abortion (yes something I know regret please don't judge me) but eventually we broke up. About 2 year ago I caught chlamydia but wasn't sure how long I'd had it so I got it treated ASAP. I've been trying for over a year and a half to get pregnant with my boyfriend but we haven't had any luck so far. Could the abortion or STD have any interference with this? .. Please help I'm beginning to think I'll never be able to have children after my stupid mistake of an abortion :'(