Is this herpes ? Or somthing else

i had sex with someone a week ago and he was bigger and he also was going very hard and i felt burning at the start because i wasnt wet enough. i had a vaginal tear and then after a couple more days i started getting pain when i was peeing and then i noticed these and they have been like this for almost a week. and i also got the rash on my butt the other day and its painful to touch because i did scratch bad and im also starting to get hives on my back .

ive been worrying myself sick lately and ive asked both people i was with if they thought they had anything and they both said no if anyone can help me out and what they think it would help alot

It resembles mild herpes to me but to be really sure you should get checked.