A progesterone level above a certain threshold at that point was used to define that ovulation had occurred and that the infertile phase had begun — and in that study, no pregnancies occurred in those cycles.

Hey there! If you’ve ever felt a bit lost trying to understand your hormone health or fertility, you’re definitely not alone. I’ve been...

🔍 What Is LH, Anyway? Luteinizing hormone is produced by the pituitary gland in the brain and plays a major role in the menstrual cycle....