H.M.
I lost my plug a month before I was induced.
I had constant Braxton Hicks from like week 20 on though. But when they went to induce me I was exactly 37 weeks and I was 6 already. So I was makin all the progress and had no idea. I was in labor but I had no idea...
So you could be making good progress and not even know it and have a simple labor! Mine was super short and 2 pushes! Easy as can be.
Goodluck!