How do I determine when to do my progesterone test?

If you typically have a 28-day cycle, we recommend completing the progesterone test on cycle Day 21. If your cycle is longer or shorter than 28 days, we advise completing the blood draw seven days before you expect your next period or seven days after a positive (+) ovulation predictor kit (OPK). For example, with a 24-day cycle, take your progesterone test on cycle day 17. If you have a 31-day cycle, take your progesterone test on cycle day 24. If you get a positive (+) OPK on cycle day 12, take the progesterone test on cycle day 19. If you get a positive (+) OPK on cycle day 20, take a progesterone test on cycle day 27.  But remember, it’s important to track your menstrual cycle and OPK results in the Famlee mobile app – it’s your digitized guide to the lab-testing journey.  Download that for FREE here.