Patients should especially tell their healthcare provider if they take hormonal birth control medicine (contraceptives) containing progestins other than levonorgestrel or norethindrone.

The sex hormones estrogen and progesterone control the menstrual cycle. Estrogen and progesterone levels dip at the start of your period. When your period ends, estrogen levels start increasing again.

Decades ago, hormonal birth control used much higher levels of synthetic estrogen and progesterone than modern methods. Progesterone can increase appetite, while high levels of estrogen tend to ...

Traditional birth control pills contain a mixture of the hormones estrogen and progestin. Some people may experience a reduced milk supply and, consequently, a shorter duration of breastfeeding or ...