Mine went from 20 minutes apart for 3 hours then to 10 minutes for 2 hours then 3 to 5 minutes for about 2 hours before I went into the hospital.
Started 10mins apart and last for 1-2mins and a few hours later it progressed to 5 mins apart.
Mine were 10 minutes apart, between 1-2 minutes long, and lasted 3 days before I went to get induced at 42+5