I know that sounds ridiculous. But my partner and I have been using condoms and whilst I know they are not 100% protection in the 15 years I've been having sex they've never failed me!
We've not noticed any breaking. The only time I can think of is once he stayed inside after he'd finished for a few mins. But I can't remember when that was and if it lines up with dates! We rarely have sex so not like lots of opportunities for condoms to break!
I've also got this ridiculous paranoid fear as I went swimming last Sunday and some creepy guy was in the pool leering at women as they swam past. What if he got excited and his sperm was in the pool and got to me?!?!
That's so ridiculous even as I type it...
Anyone else got pregnant even though using condoms and not noticing any issues?