Water breaking confusion?

Lay

FTM and I’m currently 37 weeks and 3 days. I was sitting on excise ball and I felt my dress wet. I looked in the mirror and noticed a spot about a silver dollar big of wetness. It didn’t feel like I leaked urine at all as I have done that on accident when sneezing before and it’s a different sensation. I’ve monitored for an hour and nothing. Should I still call or go in?