Labor contractions at 39weeks, Ftm

Hi mga kamommies, 39weeks ako today and can you share ano ang feeling ng labor contractions sa tiyan? Currently, masakit ung lower back ko at ung vagina ko, pero ung nafeel ko kagabi is naninigas maigi tiyan ko but hindi naman sya every 3-5 mins. I can still sleep overnight. Last IE ko is last week Thursday, closed cervix pa. Please advise and help, mga mommies. Thank you so much!