I don't know if I'm in labor or not!!!

Julia
Im 40+1. 2cm dilated on Friday and due date was yesterday. The more I try and pay attention to log when and how long the cramping/contracting is, the more I doubt if it's actually happening. It doesn't hurt, it's just super annoying but it's been happening since last night. I have a lot of sciatic pain that just started. I'm trying my best to log but I don't think I'm catching everything.