Bulging sac

Taylor • 25 💕 Mother of 1 ❤️
I'm 29 weeks 3 days. I've been at the hospital since I was 29 weeks 1 day. My cervix was 9 mm in length. Yesterday (10/4) I had a lot of pressure & contractions, found out I was 2 cm dilated 90% effaced -2 station with a bulging bag. 
I haven't been checked since, how much longer do I have ? 😕 (FTM btw )