I know this might sound stupid, but how do you know you're pregnant if you are on the birth control pill. Don't say take a pregnancy test like how do you know when you need to take a pregnancy test because I know the blood you bleed is just your body's withdrawal from the hormones and you don't ovulate (hopefully) but how do you know?! I've looked on the Internet and I've gotten all kinds of answers and I don't know who's right and who's just making it up. Does anyone actually know?