It's normal to gain about three to five pounds during your period. Generally, it will go away a few days after your period starts. Period-related weight gain is caused by hormonal fluctuations. It may be the result of water retention, overeating, sugar cravings, and skipping workouts due to cramps.

Do you gain weight before or during your period?

Causes of PMS weight gain

Weight gain before your period is also referred to as PMS weight gain. This weight gain is related to hormonal changes that occur in the luteal phase, which is the phase just before you get your period. The luteal phase is the second phase of your menstrual cycle.

When do you gain weight during period?

It is often normal to gain around 3-5 lbs just before period. You will lose this weight in a week following the menses. This bloating and weight gain is due to hormonal fluctuation and water retention.