Hi, I appreciate your query I would clarify the report of your follicular study to you. On the 9th day, in the right and left ovaries ( ROF and LOF ) - there was no DF - which means, dominant follicle. Again the same findings persisted till the 13th day, that is there was no dominant follicle in any of the ovaries. ET - refers to endometrial thickness which was 8 mm on Day 13. Collection in POD was nil, which is normal. Now, to explain a normal follicular study to you. By day 9, the ovaries start producing dominant follicles, that is among the many eggs present in the ovaries, one starts maturing to develop into the dominant egg for that month. By day 13 generally, if you have a regular 28 day menstrual cycle, the dominant egg reaches a size of 20 - 22 mm. Generally on day 14, ovulation occurs, that is the mature dominant egg is released from the ovary, and it is then ready for fertilization by the sperm. This is the normal study However, in your case, there is no dominant follicle seen till day 13, which means that you are having an anovulatory cycle. That is , no mature egg is developing for ovulation this month. Anovulatory cycles are a major cause for not being able to conceive. PCOD ( Polycystic ovarian disease ) is one of the leading causes of anovulation, apart from other conditions. You need to consult a gynecologist, and undergo further investigations for PCOD to rule out the cause of this follicular study. Also, you might require treatment and ovulation induction ( medicines to stimulate formation of follicles in the ovary ). In case your cycles are delayed ( longer than 28 - 30 days ), there is a minor possibility that your follicles are maturing later than normal, for eg, in a 35 day cycle, the day of ovulation would be 14 days before periods, that is on day 20 or 21. Hope this helped you.