Trying to concieve. More or do hsg?

Hello, I am 1 year married. I am trying to concieve after 1 year from 7 month. Every month folical scan done, but I am still not conceived. I am also a thyroid patient. I am taking this medicines - siphene 100 mg from 5 month, duphaston 10 mg from 3 month, folinal plus from 7 month, thyronorm 75 mg, and hcg 5000 injection from 3 month and ashokarisht. This month on my period 1st day my period was brown and it was not like regular period only few drop for 1 day, and 2nd and third day bleeding was normal like period bleeding, but only for 2 days, on 4th day bleeding is not coming. Is there any chances of pregnancy ? Or any problem ? Because my period was always normal, this is the first time I am facing this situation. What that mean? And my dr. Is telling me for HSG. What I should have to do, I should have to wait for few month more or do hsg? Plz help me.