Vagina hurts! 😩😫

Noelle • Engaged to the love of my life!! expecting baby #1 in December!
I've noticed that sometimes after me and my boyfriend have sex, my vagina gets really swollen and painful. It hurts to pee! My urethra doesn't hurt, but my vulva will sting like hell when I pee. He doesn't go really hard and I'm usually pretty lubricated down there. Comments? Does this happen to anyone else?