Eating does not effect your birth control.
It lessens the chances of becoming pregnant if you're having sex. It can also regulate your hormones. Some doctors recommend the pill to older teens.
Yes you can. You have to use additional protection in the first 7 days.
Yes
Well it really depends on your body type, and what kind of birth control pills you are on, are you feeling nausea if so i have had the same type of issue and i had visited my gynocologist who had...