Both Estrogen and Progesterone based Oral Contraceptive use increase stroke risk

It is widely accepted that oral contraceptive use increases the risk of developing stroke. Most oral contraceptive today are a combination of estrogen and progesterone. . . . The risk of developing a stroke increases with oral contraceptive containing increasing amounts of estrogen. . . . There is evidence to suggest that women taking oral contraceptive containing 3rd generation progesterone are at a 2-fold greater risk of developing venous thromboembolism and subsequent stroke than women taking oral contraceptive containing earlier generation progesterones. Concerned Parents Report