Question/help

I’m ovulating and I really want to have sex tomorrow and we’d use a condom obviously to be safe. Should I be worried about pregnancy? According to glow my chances are high, 33% and yes I know it’s not accurate but it just gives me an idea of where I’m at during my ovulation week. But should I be worried? Me and my partner have always used condoms and they’ve never broke only once but it was because we weren’t positioned right 😕.