Could this be early labor?

I’m 38+3 and at my appointment yesterday I was 3cm and 70% thinned out. For the past hour or so I’ve had what I’m assuming is a lot of Braxton Hicks but not sure. My stomach is getting hard all over but mainly at the top right underneath my ribs and then I get a burning sensation in my lower stomach accompanied with some cramping in my upper back and lower tummy. Could these be early labor contractions or am I just having wishful thinking? 🙃 I haven’t timed them but they’re coming pretty frequently! Not really sure what I’m looking for. I know it’s not time to go to labor and delivery because the pain is definitely manageable but just wondering if this means labor could be soon?