OB nursing is often broken into three different specialties, labor and delivery - where mom goes into labor and baby is born, newborn nursery - where the babies stay until discharge, and post-partum - where the moms stay after giving birth. Some hospitals have LDRP units, where the mom gives birth and stays until discharge all in the same room, some have mom/baby units where mom and baby room in together and the nurse takes care of both. It depends on your job description. Nurses in the newborn nursery aren't responsible for all the babies in the nursery just as nurses on the floor aren't responsible for a whole unit full of adult patients. Just because babies are little people doesn't mean they have any less issues or need any less care.

Good luck with getting your pre-reqs done!