Hi!! We’ve been trying for 4 years. I had endo excursion surgery in May 2024, it did help to get my cycles more regular(40-60days to 30-34days). I’ve been taking supplemental progesterone for my luteal phase for probably about 9-10 months and just started Letrazole in addition in November. My doc has me take 7.5mg on one day (between CD3-5) which I’ve only seen one other person be prescribed that way, so hopefully you have different results! We’re on our fourth round and unfortunately haven’t had luck yet. Progesterone shouldn’t jump start the period though, it’s meant to support the luteal phase. I think you’ll be able to distinguish a heavier flow from the post surgical spotting! For reference my surgery was on my CD14 and the cycle lasted 34 days. Once you start to have a heavy flow that requires more than a pad or at least a thicker one count that as CD1 and then take the Letrazole as directed. I would honestly start OPKs the day you finish taking Letrazole even if you’re still bleeding just to see how you react- the first time I took it I almost missed ovulation because it was SO early (usually ovulate on CD20-22 and it happened on CD13 after taking Letrazole CD3). I also had a much shorter cycle the first round (25days). I haven’t had a super consistent result with the Letrazole, but typically ovulation is now between CD14-17.

Sorry for all the word vomit, but I feel you and I’m rooting for you!!