I have a history of ovarian cysts , but have been on Previfem for over a year (a Mirena before that, several other pills throughout the years and at one point Depo-Provera ) . . . . had an ultrasound last week. The nurse said it was unremarkable, except for some free fluid. She said it could be from a ruptured ovarian cyst. How common are ovarian cysts if one is on hormonal contraceptives? The U/S was ordered for sequential breakthrough bleeding . I take my pill continuously and have 4 scheduled breaks a year. Didn t know I had to pay for this . . . cannot afford what I would pay for a co-pay . . . thanks anyway.