Okay so on December 27 I had unprotected sex. This was 4 days after my period. I took plan b 36 hours afterwards. I have been nauseous, my vagina feels “full” and my stomach hurts so bad. I am due to start my period this Thursday. I also have a foul smelling discharge that only shows up in my underwear and is never there if I wipe. Please help I’m worried.