4 cm is considered active labor. I'd go to the hospital. You never know how quickly you'll start to dilate. You should still have the freedom to labor as you like until you're 10cm
At 39 weeks I was 5cm and 100% effaced. I was still induced. He was comfy and wasn't going to come on his own! Lol
No am not at hospital am out walking around to try an help
Are you at hospital? I went in at 6cms dilated the first time before i started having real contractions, but real labor is supposed to start at 4cms for some reason it just took me way longer to feel them lol. But sure does sound lime you will have your little one soon!
I would take a really long walk
Way can I do to help it along faster