My partner and i got abit carried away while i was on my period which i dont normaly do but one thing lead to another, we had vaginal, then i gave him oral, then vaginal, then anal and then vaginal again, all without using condoms. this was 3 days ago and now i am feelin very sick, findin it very hard to pass water and have bad abdominal pain. i would also just like to add, none of us have an STI. im guessing i have some kind of infection? and what could it be?