Sex for the second time

By the topic, yes I had sex for the second time with my bf after losing my virginity a week ago, however we didn’t use a protection then and we still didn’t use one again 🤦🏾‍♀️ but he almost came inside of me if he hadn’t pulled out now I’m worried 🥴 anddd the worst part is every time he tries to put it back in, my vagina shuts off (lol) like I’m completely sore still but isn’t it supposed to get better after the first time tho?