<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi was looking for some help and advise.. have been going through the unexplained infertility treatment from long. last month was on progynova to increase the thickness of lining. have missed my periods this month of ver 10 days . did check the urine but was negative last week. please advise. regards Sonia YYYYYY  <response>: Hi, Treatment of unexplained infertility is super ovulation with GUI. There is no need to take progynova to increase the thickness of lining as this will prevent pregnancy. Also, as long as you are taking progynova, you wont have menses. So its not surprising that you had delayed menses after taking the medicine. Its better to consult infertility specialist get proper treatment. Treatment given for super ovulation will increase your estrogen levels hence endometrial thickness you wont require progynova for that. Wish you good health. 