I’m new to this but I think this is why. When I started daily progesterone I had a period 2 weeks later and a very light one a month after that and now nothing. 55 days late. Even though I feel like I’m about to have one… nothing. I am planning on stopping the daily dose next week and trying the on of approach and see if I get one. I’m interested to see how many days off it takes to get one. Sorry I can’t be much help. I asked about progesterone doses last week and only one person answered so sadly, I don’t think it’s a topic you’ll get much help on, maybe check through some of the question already posted? Best of luck.