Some women report a decrease in their migraines during pregnancy

• Migraines affect approximately 28 million Americans, and women experience them three times more often than men. The hormones estrogen and progesterone, which play key roles in regulating the menstrual cycle and pregnancy, may affect headache-related chemicals in the brain as well, the Mayo Clinic said on its Web site. Higher estrogen levels may improve headaches, while lower estrogen levels can make headaches worse, according to the Mayo Clinic. That's why women taking birth control pills may have an increase in migraines, and a woman may experience migraines around the time of her period. However, some women report a decrease in their migraines during pregnancy.
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