Progesterone is a natural hormone, produced by ovaries after a woman ovulates (when an egg is released into the fallopian tube). This hormone is also called the pregnancy hormone and plays a key role in fertility and pregnancy. It is called so as it helps in getting pregnant and promotes pregnancy. Progesterone makes the uterus ready to accept and keep a fertilized egg. A woman’s progesterone level is generally low during the first few days of her menstrual period. But her progesterone levels rise for around five days once she ovulates and comes back down. Progesterone Tests for Fertility Problems …