Blood Clots while taking Errin birth control

I had preeclampsia/eclampsia during my pregnancy and now I'm taking medications, such as two to treat high blood pressure and one to treat iron defienciency, I am also taking this Errin birth control and I just passed a blood clot, im pretty sure of it, so I am going to stop taking this, am I at pretty high risks for anything or passing a couple of clots is okay or what?