As you read up top in my first response, nope, I would not say that. That said, the X factor in these things is always your own fertility, and I can't take that into account.
But ultimately, deciding to use Plan B or not often comes down to not how *likely* pregnancy is for people, but if they want to risk it at all.
If you don't mind a very small risk, and EC also doesn't feel like something you want to do or can access, then there's your decision. If you don't want to take any more risk than you have to, even a small one, and you have access to EC and it's safe for you to take, then there is probably your decision.
I do think, however, it sounds clear you don't want to be pregnant, period, so if you need any help having these conversations with partners about safer sex and contraception, I'd suggest we talk about that. Often when people go without both, something will happen eventually when it comes to STIs and pregnancy. It's usually more a when than an if unless people change their behaviors, know what I mean?
Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has. - Margaret Mead