This is a strange question, but it's confused me for a while.
I've read all over the place and heard that the estrogen part of combined birth control is what can cause blood clots and the risk of stroke and heart attack. Yet, on the Nuva-Ring commercial, it says that the progestin in Nuva-Ring is what can lead to blood clots and stroke, etc.
So what the heck???
That is really weird/confusing!