Cum inside?

Last week about a week ago my hubby came inside me. It wasn’t the first time basically just a accident. Anyways ever since then I’ve been cramping. To the point I thought my period was gonna start a few days after I experienced: still experiencing sore nipples to where my shirt rubbing against hurts bad and severe nausea. Meanwhile my period ended a week prior. But it was a matter of days. Is this normal? We had a condom mishap but he is my husband, so Std is out the window we just started using condoms (not on Bc as I don’t like it and we plan for kids within next year) so, and as well as pregnancy We both agreed whatever happens happens. but I personally don’t think it will cause my periods are irregular normally late. I just wanted to know if cramping this much is normal. I first like sided it with maybe rough sex but like we always have rough Sex and it’s still a week where my vagina personally feels ripped open even with wiping. I cannot sleep worth shit cause I keep going pee no matter how little and I’m cramping and my lower back hurts. How normal is sperm allergic reactions? Is it a actual thing? Idk that’s what the internet told me could be. I’m not jumping to pregnancy as because I know it takes weeks to actually experience symptoms meanwhile it’s only been a week tops lmao. I just feel gross. 😭