34+4 weeks! Stop and go labor?

Hey all. 36(F) currently readmitted to antenatal. Back story: Diagnosed with short cervix (1.7cm down to 1.2cm) back in December and was admitted for 5 weeks. Doscharged at 28 weeks with 1.2cm and have been off work chilling at home.

I had some spotting and cramps at 32 weeks and came to L&D. Cervix was closed so they sent me home. Couple days later, I felt I was contracting so came back. 3cm. They gave me morphine ans gravol for pain. Labor stopped but I was admitted. Had a couple of quiet days in hospital so we scheduled a 34 week scan and if all looked good I could go home.

Last night I started to get really uncomfortable and contracting. Did a check and cervix was 4cm with bulging membranes. Contractions coming every 3 minutes. I was moved to a birthing room at 1am and called my husband to come. Contracted regularly until about 4am and then just stopped. Ultrasound I had booked for today was cancelled and now I have no idea what will happen next or what to expect.

I am so scared for my babys well being and worried the start and stop labor will stress baby out. I know I am still too early but the stop and go is wreaking havoc on my mental health. Has anyone experienced this?