Painful Vagina

Libby • Pregnant with my 1st!!😍❤️
I just had sex with my boyfriend and it usually only hurts a little bit, but it hurt a lot today and now my vagina is very very swollen and very sore, my boyfriend said I have little red dots on a part of my outer and inner vagina but we were both recently tested and have nothing. 
I'm really confused and I can't move properly and it hurts so bad to pee, I tried having a shower and washing it with just water and it still stung..
:( I don't know what to do