Bedrest, how long before you went into labor?

I am 33w2d and have been on bedrest now since 30w. I started dilating at 30w (2 cm & 75% effaced) so they put me on strict bedrest & started me on meds to slow down contractions. When I went back Monday I had dilated to 2.5cm and 80% effaced and contractions are coming every 3 minutes. Doctor said nothing to stress about yet until they become more intense. My girls were weighing 5lb4oz and 5lb5oz Monday so they are good weights & I have had the steroid shot in case they come early.

Has anyone else experienced anything like this and how much longer did you go before you went into labor? I'm so miserable I'm almost ready for them to come on, but I know the longer the better. 😣