Can people usually feel a condom break, or feel tge difference when a condom didn’t work effectivly?

So lately my friend Jess has been worried about the condoms her, and her man are using not working, so she’s been asking a lot of questions I don’t know the answer to. She overthinks it, my friends and I just told her she could get hurt, but we’ve also warned her about other more severe outcomes to her situation, her mom has coincedentally warned her about the outcomes too (with-out knowing what she’s up to). And mom’s are smart, her mom has said, “You better not come to me with a consequense,” and her mom has warned her because she knows about some of the other bad situations she’s put herself into, like dating a guy who was abusive to her one time. And Jessica knows my friends, and I are right about the severe things that can happen, so I think that’s why she wants to have more knowlede on condoms.