I didn't actually feel contractions until after I'd been on the meds and got to 4 cm then they kicked my ass so I got the epidural and started dilating pretty quick after that lol
I was 38 weeks too. My water broke at 5 am but I thought it was pee so didn't realize until about 10. Got to the hospital at 11 am but still wasn't dilating by 2 or 3 so had to get meds, had baby around 11:30 that night