Why does it hurt? Help please!

I'm with my 3rd partner and the sex hurts when we use a condom. We go without sex for the first round, he cums, and then we put on a condom and go at it again. But right as it started, it started hurting like crazy. I had to stop. It's like. Burning feeling that lasts a hour or so afterwards. I think it may be the condoms, but I've used condoms before and I don't remember it hurting like this. ANY information is useful! 😅😳