Wow, you girls are lucky..... no pain.
Im 4cm and didn't have any contractions and they sent me home im 36w 3d
With my first i felt none through the whole labor process. Had him all natural in 3.5 hours. Got to the hospital at 5cm and didnt know. Had no pain at all
Technically your still having contractions just not feeling them. Our hosp admits at 4 cm usually or sooner if the pain is un bearable. Etc. I dilated to a 3 with no contractions.
With my last pregnancy I didn't feel any contractions and when I went to appt was 5cm they sent me to L&D immediately where I was admitted and spent day hooked to stress test where it showed i was having contractions but couldn't feel them. Usually they admit you once you hit 5cm.