It doesn't matter if he ejaculates. Pre-ejaculation still contains sperm and can and does get women pregnant. If you're on birth control and using it properly (IE taking it everyday, at the same time and not skipping pills) your odds of pregnancy are low and might be the cause of your odd bleeding.
im on the pill..... and he's used condoms but the first time he took it off and the last time he didnt even get off..... but just a lil bit ago i went to the bathroom and when i wiped i had a lil dot of brown discharge
As we've said in the past, anytime you have sex, especially unprotected you're risking pregnancy. Are you trying to get yourself pregnant? Wait two weeks since you last had sex and take a pregnancy test with first morning urine. If you're not trying to get pregnant, you need to be using protection all the time and get on birth control.