Women and people assigned female at birth usually start noticing physical and mood changes about one to two weeks before period bleeding starts. A total of 90% of women have premenstrual syndrome (PMS ...

Your period may come early due to changes in your hormone levels. This can occur due to puberty, perimenopause, certain medications, stress, or various health conditions. Everyone’s menstrual cycle is ...

Menstruation is a result of puberty. This is when your body becomes capable of reproduction. When your menstrual cycle begins, your estrogen levels increase. That causes the lining of your uterus to ...