If you've been on Birth Control for over 4 weeks then you're protected against pregnancy.
It only takes once with unprotected sex to become pregnant.
No. It does not act as the "Morning-After pill" When starting birth control you should wait at least a month before having unprotected intercourse.
The chances are great.
Possibility is low.
there could be a possibility but it is very much rare to get her pregnant.
The purpose of a birth control pill is not to get pregnant, so they are not "prone" to getting pregnant. To get pregnant the pill has to be stopped.
The same as every other woman who is not using birth control - about 30%.
You can get pregnant at any time suring your cycle if you have unprotected sex. It is less likely to get pregnant DURING your menstrual period, but it is possible. If you are trying not to get pregnant, make sure you use a condom during your whole cycle. If you've had unprotected sex and you're worried you might get pregnant, go to a helth department or Planned Parenthood and ask for the Plan B pills. They are higher does birth control pills that may stop you from getting pregnant.
If you have unprotected sex for a year, you have a 20 percent chance of getting pregnant during each cycle.
You could get on birth control, use condoms, use spermicide, use a diaphram, not have unprotected sex EVER unless u are ready for a kid. Those are your best bets.
Women having unprotected sex who are between the ages of 13 and 50 are at a high risk of getting pregnant.
NO!!! Most birth control you have to take for at least one week before it works at all. Some you have to take for a least a month before it works. If you have unprotected sex on the first day of taking the pill you will get pregnant.