Trying to get pregnant. HELP!!!

Hi ladies, I'm 25 yrs old and removed the Mirena in March of 2015. However, I kept it over the 5 yrs. I was suppose to remove it in June of 2014. Before the IUD, I had a regular, 5-7 day heavy cycle. While I had the BC... It became irregular (some months I would get it and when I would, it'll be light). When it was removed, I didn't start my cycle right away. I started my cycle once t was inserted. Anyway, ve been trying to get pregnant since. And still no luck? Any advice ladies?!?!