I bled a lot 2 days ago while having sex. my period had been over for about 2 days. now theres a brown spotty discharge occuring. wht does this mean?

Possible laceration: You might have a Laceration and I would suggest getting an exam

Sex on period: It is ok to have sex when you are on your period but it is definitely messy. Since you had sex two days ago and your period ended then that likely explains the bleeding . Semen would then mix with the left over blood and vaginal secretions creating the brown discharge you see now. Most likely it will resolve in a few days. If not see your Obgyn for an exam