Later Loss, not early Mc

Hey all, I’ve had two Mc, however they were both before 8 weeks. I know this is a sensitive subject, but I keep seeing more and more people say they lost theirs much later than that. Can anyone please tell me why or how this happens when it’s suppose to be a less than 2% chance? Please forgive me if I’m offending anyone or you don’t want to talk about it...I’m just having the worst time trying to see what causes this and it’s concerning me 😢 Please and thanks!!