I've been told that I'll know if it's the real deal. "Don't worry you'll know! You won't be able to breathe though it" and I'm sure those people are right but.. what if I don't know???

I've been having contraction things for the last 2 weeks. Off and on, never closer than 8mins apart and they don't get stronger but they have been changing. So now the contraction things are in my Lower back and hit down deep. Could these be the real thing? Or am I just in for another evening of uncomfortable things until they fade away?? These are stronger. They are hitting roughly ever 6-7mins. Just chugged water and am about to go to bed. Ladies, are they right? I'll just know when the real deal is here? 38w 4days. I'm ready to rock and roll... wish baby boy was onboard with that!

I just don't wanna be that gal who ends up having her baby in the car because she is waiting to "know" 🤣...