My Period Was Regular For 3 Months . M Trying

My period was regular for 3 months . M trying for conceive. So I had done follicle study and I had given hucg then I felt some symptoms of pregnancy. But my period came late 5 days. After that I didn’t get period 3 weeks. So I consulted Obgy n she prescribed me regestron for 5 days thrice in a day. Is this tablet will affected on my pregnancy??