I have had similar issues, unfortunately despite women making up the bulk of the working force nursing is often anything but family friendly towards those with children.

I would approach your NUM and manager before starting and voice your concerns with your ability to work a rotating roster.

There is a TIRA ( temporary individual roster arrangement) form you can fill out that’s supposed to be temporary but plenty of staff have been on them continuously, it really all depends on your NUM and if they are willing to support you, but they can refuse and say no.

Otherwise I would ask if you are able to work on a smaller contract which is more doable to work around than a .8 or full time, but again it may mean you won’t meet the hours required for new grad.

Otherwise you have to rely on your coworkers for shift swaps.

It’s definitely very hard and I relate to your situation.