Menstrual migraine affects over 50% of women. Of these women, most will experience migraine during menses but also at other times of the month. Migraine during menses tends to be more severe, harder to treat and often occur even despite medications.

Reference :by Carl Cincinnato, https://migrainepal.com/prevent-menstrual-migraine/#How_The_Menstrual_Cycle_Causes_Migraine_Attacks , july 3rd,2019