This is my second cycle on progesterone 100 mg supplements. I normally have a 24 day cycle, and the first cycle on progesterone, I still started AF on day 24, one day before I finished the progesterone supplements. This time, I am on CD21, and am supposed to be taking the pills through next Thursday, and I started spotting/cramping today just like I do when AF first arrives. I called the on call dr. and they told me to take the progesterone until I was sure this was AF, and then to stop the pills if AF truly did start. I'm supposed to call my OB on Monday to set up an appt. with her to discuss things further. The on call dr. said they might want to try to do a progesterone level test with my next cycle, or they might just want to up my dosage of progesterone, or they might want to refer me to a specialist for more in depth testing

So, I'm frustrated. Frustrated that my body isn't responding well to the progesterone, and frustrated that it looks like we're moving on to another cycle of TTC.