HELP‼️‼️ 1st LETREZOLE CYCLE

Ok so I have pcos, tried clomid didn’t work, she put me on birth control for 6 weeks to “calm my ovaries down” before I tried letrezole. So I finished the birth control and called when my period started and they said take it days 3-7 of my cycle. The only problem is, my cycle seems to have stopped after the 3rd day….I had a really light period and idk if that means it won’t induce ovulation at all or not? Anyone else go through this? I would call my gyno but the office is closed on the weekends unless it’s an emergency but it’s not sooooo😅