I Was Prescribed Tri Sprintec When I Was 15. I

I was prescribed Tri Sprintec when I was 15. I had polycystic ovarian syndrome and my ovaries were covered in cysts. It helped get rid of the cysts and regulate my period. I continued to take it till I turned about 17.... I'm now 21 and have not had any luck with getting pregnant. Was the estrogen levels in the medicine to much for me at that age? Is the medicine the reason I can't get pregnant? What should I do?