HELP EXTREME PAIN AFTER SEX!!!!

please help!! I don't know if I should go to the doctor,I'm in extreme pain it's cramping all over my stomach in my back my lower stomach and (tmi) my butt hole

I don't know what's going on!!!! My s/o thinks I'm pregnant and just caused another miscarraige

PLEASE HELP!!!

I'm also experiencing extreme heat flashes and nausea! !