Did anyone have their baby between 31-35 weeks?

Things with my blood pressure and possible preeclampsia aren't looking good, my doctors are thinking I might have my baby at 34 or 35 weeks if I'm lucky, but it could be any time now. I had my first at 36 weeks and he was 6lbs 9oz, 19.5" and was in the NICU for two weeks. Did anyone have their baby around this time? I'll be 31 weeks Friday. If so, how long were they in the NICU? How big were they? Did you need what size clothes were they in when they were released from the NICU? My son was in newborn size when he was born, but I don't know if I should get preemie clothes, or just wait and see. Just trying to prepare for whatever this pregnancy throws at me.