pain during sex

me and my boyfriend are the most cautious people ever we always wear condoms, he pulls out, and i’m on the pill. yesterday we had the conversation of what sex without a condom would feel like since people say it feels so much different. we had sex twice yesterday and tried to go for 3, but it hurt me too much and had to stop which isn’t uncommon. then today we tried to do it but it hurt me too much and we couldn’t, is this because of the sex yesterday without a condom or something or am i just sore from yesterday? i usually am fine the next day when i am sore so i’m just wondering