Could this be labour?

I have been having “contractions” for the past hour. They are all between 3-5 minutes apart. They started off in my lower abdomen but have slowly worked their way into my lower back. I feel like they are definitely a lot more painful than braxton hicks, and actually make me stop what I’m doing. However, I’ve had braxton hicks in a regular ish pattern for 3 hours before so I’m scared of going to the hospital since we live over an hour and a half away. Just wanted peoples thoughts?