sex hurts soooo bad after the first two rounds

Ma

i’m still relatively new to sex and my boyfriend can last superrrrr long so we pretty much are able to have sex all day. after the first two rounds of sex, my vagina is DONE. like i can’t even touch it cause it hurts so bad, can this just be because i’m still kind of new with sex and maybe it’s too much to start off with? is it normal or not?