This link is to an article in the JSTOR database, Cal State Henry Madden Library, Fresno. It is limited to users of that particular library.
This peer reviewed article studies the relationship between women who have a history of migraine headaches in relation to developing preeclampsia or gestrational hypertension during pregnancy. The study included 172 women with preeclampsia and 254 with gestrational hypertension. The control included 505 women with no history of hypertension before pregnancy. The study concluded that women who had a history of migraines may be at a higher risk for developing hypertension during pregnancy.