Try not to stress. (Easier said than done I know). Firstly positives: 1. you have found out and your docs are onto it (rather than just going into premature labour without the care you and baby need) 2. You have made it to a point where baby will likely do well from a survival, heart and lung point of view. 3. You have steroids on board to help mature baby's lungs enough that they may need a bit of support but are less likely to need a ventilator- especially if baby matures another week or so.
The unknowns are harder to deal with and I would be quizzing the docs: what is going on with baby's kidneys? Do you need a neonatal kidney specialist opinion? What will they do to help baby's kidneys when they are born? Do they want baby to come out early to help with the kidneys or just think they will because there isn't enough fluid and that's what often happens?
Not sure if any of that helps but my brothers baby was born at 28 weeks and she is now a year old with no serious health problems we know of. (Very cute) It is very stressful but both him and my sis-in-law took every day with her as a gift and tried to enjoy any positives they could despite having close calls in the first few months. 32 weeks is a good start. 34 even better.