Is it possible for me to be pregnant even while on BC?
Well, birth control carries in effectiveness depending on what you use, the pill is about 97%, IUD is 99%, patch is 95%, and condom depends on how you use it
Yes. Birth control is about 97% effective.
Possible, but not likely if it was used correctly. Some antibiotics can made birth control pills ineffective, also.
Yes it is
Yes. You should really learn about birth control before you begin to use it and sex before you do it.