I've been there myself and with my daughters baby,if they've given her steroids it will mature the babies lungs and give him/her a better chance IF he comes early.My daugher was 5cms dilated when she first was admited and they managed to keep her thet way for 3 weeks .Every day in the womb is a bonus,my grandaughter was born small but perfect and is a happy sometimes cheeky 6 year old.Back 29 years and I had no steroids ,my boy was born at 28weeks and 4 days ,he weighed just 2and a half pounds ,he spent his first 11 weeks in SCBU and came home weighing 4pounds 13 ounces ...he's still a skinny thing at 29 but hes been a healthy boy all his life .the treatments available nowadays are far superior to what he had then so you can be causiously optimistic all will be well.You'll be in my thoughts