Absence of Periods. This situation now?

I got married on 19/05/2014. After Marriage we were doing protected intercourse up to 27/04/2015. My Menstrual cycle was irregular since last 5 years before marriage also. After marriage also up to 27/04/2015 my cycle was irregular and length was varying between 40-50 days some times 2 months also. But after May 2015, we decided to have a baby and we have been doing intercourse without condoms. But after May 2015 I did not get my periods till 15-June 2015. We consulted gynecologist and she prescribed me primolute-N tablets. After taking tablet for 3 days (total 9 tablets) I got my periods after 7 days around June 30 2015. since July onwards also doctor prescribed me siphene once and ubiphine twice but only once follicle eggs was formed and I got period within 28 days. then after Jan 2016 I stopped taking any medicine and since jan 2016 I have not got my periods yet. Please suggest me how can I deal with this situation now? My FT4 and thyroid test and pelvic