With my second and third, I had to take it very easy, I kept contracting and dilating early on, like at 3 months. I was on bed rest with my feet up. The only exercise I got was hand to mouth, ya know eating. lol
Then when I hit 38 weeks, doc said, ok get up and I'll probably see ya tonite.
Guess what, I went for walks, I cleaned, I vacuumed, more walks, with my 3rd, I even built a horse corral when I was 8 days overdue, no luck.
Yes, they come when they are ready.
With my first, contractions started at 7 months, well, they are called braxin hicks or however you spell that. I finally had to get off work, I was doing a lot of heavy lifting still, on my feet all day, my ankles were swelling and my feet hurt, but I was still 4 days past due date. 2nd 3 days past, 3rd, 10 days past.
My labors, firs 3 hours, 2nd, 4 hours, 3rd, 1 hour 20 minutes. That last one barely gave me time to wake up the neighbors at 3am, take the other two over there, drive 15 miles to town. I went straight through those doors to delivery and had him 20 mins after I got there, dr barely made it in time! He knew I had fast labors, so he knew to jam to hosp as soon as they said it was me there. lol