It has been 2 yrs since my 3 unexplained MCs. I got pregnant for all 3 naturally. But, lately got diagnosed with PCOS. My questions are: 1. How many of you have had success stories with the first round of Letrozole 5mg (taken on the days 3-7 of menstrual cycle) using OPKs? 2. Is it possible that I can miss my ovulation since I have long menstrual cycles? Yes, I do ovulate naturally. My average cycle length is 77 days and period length is 8days. 3. Are there possibilities of multiples considering that my Doc says I have plenty of eggs? No, I don't know how many they are or their size. I am new to this app and TTC forum posting. Thanks in advance for your support.