di/di boys 35 wks, 2-3 cm and lost mucus plug

I went in for a non stress test today and when they checked I was 2-3 cm dilated. I've had contractions for the past few weeks but they haven't been consistent enough or strong enough to be labor contractions yet. I have a 3 yo daughter and everything in my pregnancy has been different with the twins.

A few hours after I got home from the doctors I noticed I had lost part of my mucus plug.

Baby A is breech so I know I will need a c section. I called L&D and they said it was fine and I could still go a few more weeks.

Just wondering if anyone else had or is in a similar situation. I want to figure out how much longer I may have before they are delivered.