Menstrual cycle and libido
Medical experts associate changes in sex drive with changes in the ratio of estrogen and progesterone, hormones that are produced by the ovaries. These shifts occur at different phases of your monthly cycle. During your period and for a few days after, the concentration of both hormones is low, resulting in less sexual desire.
By the time ovulation rolls around, estrogen peaks, naturally increasing libido. Once the process of ovulation wraps up, there’s a boost in progesterone production, and you might notice a dip in your sex drive.