Lower abdominal pain after intercourse, what is this?

Hello everyone, I'm glad I got here. I'm going trough a super painful moment and I need your help. I can not go to the doctor yet or afford medication, please help me out.

About 3 days ago I had vaginal rough intercourse with a large sized man. Protected ofcourse, and he was tested. After the intercourse I was hit with stabbing and bruisy pain on the left wall of my vagina that soon radiated to my bladder and anus area. Passing gass, stool and the worst: holding pee in became a nightmare. Not to speak about sitting and walking and coughing. It feels like someone punched me in there ( I just really hope it's a bruise making all this pain happen. I'm scared and pretty anxious by nature...). I'm getting really stressed out also due to the fact that I must go to school and the current situation at home does not allow me to laze around that much ((hence to even complain that much)).

I need help ASAP. I have no idea what to do except endure and clench my teeth trough all...

just meet lady doc.

I meantioned before I can not visit the doctor nor afford medication

IMPORTANT UPDATE: 

Today I had chill feelings over my legs and back, fever like painful skin. At midnight I presented myself with slight fever going to 37.4. I was shaking and feeling pretty awful for a while.

Right now it's morning and it dropped at 36. I'm still terrified