 [ Symptoms ] will birth control stop pregnancy if he comes inside of you  i have been on birth control for 5 months but he came inside of me without a condom what are the chances im pregnant [ Disease ] birth control is called birth control because it prevents conception there are many different types of birth control so i am assuming you mean the oral contraceptive pill the pill is highly effective in preventing pregnancy so you are good by not using a condom you are at risk for a sexually transmitted disease another thing to worry about