Painful sex after period

2 days ago was the last day of my period. There was only a little bit of pink blood when I would wipe and I just wore a panty liner just in case on my Last day. My husband and I decided to have sex 2 days after my period since I was done bleeding. The entire time It was painful. I started bleeding like a full on period and now I’m having some pretty uncomfortable cramps. Is this normal? Sorry if I sound stupid I’ve never had this issue before