As progesterone levels rise, you may begin to feel moodier. This happens because progesterone helps the body make cortisol, a hormone that tends to be higher in people who are stressed.

Why do females get mood swings during their period?

During this time, your body releases an egg, causing estrogen and progesterone levels to drop. A shift in these hormones can lead to both physical and emotional symptoms. Changes in estrogen and progesterone levels also influence serotonin levels.

How does your mood change during menstruation?

Feeling depressed before and during a menstrual period is common. Experts believe that these emotional changes occur as a result of fluctuating hormone levels. Most people who menstruate will experience some symptoms of premenstrual syndrome (PMS), including moodiness and headaches.