So I went to the doctor and they wouldn't do an ultrasound, but they did a blood test and it said that i wasn't pregnant. So i went to the er and they told me that i wasn't pregnant either but thy couldn't give me an ultrasound. So the dr gave me a prescription for provera. what is it? what does it do he told me it was birth control. but i went to the pharmacy and they said that it wasn't birth control. it is hormones. oes anyone know anything about this drug?