helo doctor, am 22yrs married with pcos, been on TTC for 8months but nnt yet pregnant my husband semen analysis is good, i was put on clomid 50gm twice daily for 5days from 6th day of cycle and primolut-n 5mg twice daily for 5 days from 20th day of cycle, my question is why did the doctor put me on primolut-n on 20th day of cycle?