Fertility problems

I'm cUrrently 19 I had got pregnant wen I was 15 with my ex bf  back in  March 2012 I decided to have an abortion in April I got with my current bf now on the 24 of March  2012 so I've been with my bf for four years I just have a question of anybody can help me I'm currently trying to get pregnant we use no protection and nothing  would that abortion have affected my fertility or should we try harder please someone help thank you so much!?