um , well im not sure if this is correct but
not sure about on your period .. but right after it .
like if its the end of it , your at risk bec of sperm surviving .

someone correct me if im wrong ( im not expert )

Chances are you are ok, but there is no guarentee.
You should get on birth control to better your chances of not getting pregnant if that is not what you want.

It sounds like you were just not done with your period. Sometimes my cycle will get lighter towards the end at night, but the next day will get heavier and then lighter again at night before it is done.

If your period does not come next month take a pregnancy test.

ok...i been off my period for like 2 weeks now n i took a preggo test n it was negative...i took it like 3 days ago but this mornin i went to pee n there was like a spot of blood n it was pinkish when i wiped but i been fine since that...any idea wut the hell is up with that??