Hello we are planning for a child. in my last cycle, progesterone test was conducted on day 21, and value was 1. doctor said that i didnt ovulate and prescribed me letroz from day 2 of next cycle for 5 days. now i know letroz will induce ovulation but on which day, i am not sure. i had pcos history and previous follicular studies without any letroz shows that i ovulate normally between 19 to 22 day. so i want to ask that shall i go for a follicular study, so that i know on which day will the follicule rupture, so that we can plan intercourse accordingly? is follicular study and unprotected intercourse allowed in same cycle?