Small drops of blood in morning urine.

Hello Doctor From the last three months my periods cycles are irregular, it was almost skipped a month in between. And I was suspecting it was because I was pregnant 6 months and it was a miscarry. When we are planning for pregnancy periods became irregular We visited a doctor and she suggested MEPRATE 10 MG TABLET for getting the periods. I had the for 5 days and got the periods in the 5th day from the day I stopped tablet Now it was 17th day in my cycle, as we are planning for a problem doctor suggested to take DUPHASTAN 10mg from 16th - 25th day of the cycle. So I started having that tablet from yesterday night. And now I'm encountering a small drops of blood in the morning urine. What could be the problem docotor??