My period started coming on its on about a month and half after taking my last birth
control pill. In December, my gyno put me on Metformin 750mg 2 times a day. Then in January added 5mg Femara (days 3-7), also did that in Feb. Then this past month (March) she uped me to 7mg of femara (and still taking Metformin, too). My 21 day Progestrone levels for December was 2.87, January was 1.76, Feb was 7.87, and this last one was 9.