lower abdominal pain, vaginal pain, & throwing up during

please if someone can help me on this please email or respond. this is my first time ever writing anything on this. ok so me & my husband have been together for almost 6yrs. well last night we began to have sex. it was just casual soft sex. nothing crazy... well we was only doing it for maybe 6min whenever i started hurting. it started like on the inside on my vagina.. and it went on like the top part of my vagina and down to my anus. and the lower part of my stomach. well it hurt really bad. i curled up into a fetus position and laid there for like 20min and wouldnt move because it hurt so bad. well whenever i thought it was finally over i went to get in my bed. and it started hurting so bad again. i couldnt even stand up straight. so from my belly button and below it was crampin and hurting so bad. and from my belly button and above it was burning. so i was laying in bed trying to curl up real tight hoping it would stop. and then i got a sudden urge to throw up. so i ran to the bathroom and threw up so bad... after i threw up for like 5min constant the pain sorta went away. but today i was supposed to start my period, and i havent started yet. so i thought maybe my period coming had something to do with it. guess not. well the top part of my vagina still hurts a lil bit. like when i walk or cough. i dont know. ive never felt anything like this before. and i dont know what it could be caused from. so if u have any answers please email me ur response. thanks!