During pregnancy, women can experience a range of symptoms. Headaches, particularly in the first and third trimester, are a common symptom during pregnancy.
Hormones play a role in headaches. During pregnancy, levels of the hormone estrogen rise. The elevated estrogen can help relieve head pain some people who suffer from regular headaches. In others, the additional hormones and other changes can cause headaches during pregnancy.
Most studies show that women who suffer from severe migraines find relief while pregnant.
A 2002 Canadian study of 1,101 pregnant women, just 36 of them experienced headaches for the first time. Most of the women, who had headaches before becoming pregnant found that the headaches improved or disappeared during the second and third trimester.n