I use bioidentical progesterone. I use it 2x/day days 12-26 (I don't ovulate at all without progesterone). Since the goal is to "normalize" your cycle, go off the 28 day cycle for timing. The OTC stuff didn't help at all so now I get a compound prescribed by my doc. Still working on getting my hormones regulated over 2 years after going off the pill. Fun stuff!
Hope this helps