A few hours is a longgg time! They usually say call after an hour, also you are measuring ahead so baby sounds ready
Are you timing them? If you're having them every 5 minutes, they last for a minute each time, for at least one hour. They can definitely be labor. If they come and go and have zero pattern going on, and get farther away from eachother as time passes, it may be Braxton hicks. But if they aren't going away at all, and still don't have a clear pattern. It never hurts to go get checked out. Especially as a FTM.
It’s probably early labor contractions! I had them at 36 weeks and still pregnant now at 38&1