<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi,i have undergone several tests like uv scan,trans vaginal scan and blood tests including hormonal tests and thyroid tests etc. but everything seems normal.we r trying for pregnancy for last one and half year and he too had normal sperm count but we couldn t succeed.i m using trufol,benforce-m and a to z gold multiitamin tablet from before 1 month.i used to get regular periods.in december i have taken premoult to delay my period for some reason and after stopping it i have my period after 3 days ie. dec 25th and in january i have period on 20th but know i missed my period till know and pregnancy test is negative.is their any problem with medicines i mentioned above for delayed period.  <response>: Hi, Thanks for your question. I dont think the medicine you are on, or have had could have caused this period problem. You have not provided the details of your test results from the medicine you are taking I have guessed that you may have an ovulation problem since you are on metformin, are unable to conceive have delayed periods. So, my suggestion for you is to register yourself at a good fertility clinic with your partner get yourself fully evaluated. Once a cause is found you may be offered a specific treatment which may be ovulation induction in your case. Wish you best of luck 