. -- joining us with more rebecca levenson a senior policy analyst for futures without violence. thanks for being here. i heard about this during a conference with domestic violence. you were talking about them. how widespread is this? >> it's very widespread. we did a study funded by the national institutes of health. the principal investigators found that in california, one in four women were experiencing reproductive coercion, a partner trying to get them pregnant as a means of control when they didn't want to be by engaging in behaviors that you just mentioned. >> cheryl: how drastic do they go? >> well, as you mentioned, it's everything from popping the birth control pills out and putting sugar pills and to revolving contraceptives off the >> chery >> cheryl: that is so dangerous, too. my goodness, you will know if this is happening if you get pregnant. >> one of the questions we ask them, is there ever a situation where you feel like he is trying to get you pregnant when you don't want to be. do you have a funny thought in the back of your head. the condom broke again. so s