guys I sincerely need ur opinions

Tonight I had sex  on my fertile days but my bf was wearing condoms however I couldn't feel him properly so he took it of and used the withdrawal method. But however when he pulled out I felt something run out of my vagina so I smelled it and it was his cum however he said it's mine cuz when he pulled out that's when he came, this is the second time this has happened to us and he's saying it's bothering him cuz he didn't cum in me. Guys am completely dull to this I don't know what happened. Has anyone else had this experience cuz I'd really love ur opinions 😬😬😩