I am in the same boat. I took a S.T.A.B.L.E class and I stayed after to speak with the instructor who was a NICU RN. I asked her this same question and she told me that if all else fails, they like post partum nurses. This is because you will get experience with "normal, healthy" babies and will know their normal baseline of health. I guess similar to starting in adult med surg and then transferring to adult critical care if that makes sense. Good luck!