Sensitive/sore clit during sex

This has never happened to me before but last night my man and I were having sex last time we did it was about a week ago and he was on top and his stomach was just lightly rubbing against my clit and it was hurting me. Sometimes after Sex it's sore from too much rubbing but nothing had touched it for a week and there was no obvious signs of there being any inflammation of infection down there. We also used lube. Has this happened to anyone else?