Rather than the traditional route, have you considered applying for a nursing degree apprenticeship? They're advertised on NHS Jobs and you'd complete your training while in a salaried position, usually with a requirement to work x number of years for the trust after qualification. It's a lot more financially forgiving than the standard student loan package!
If you take the traditional university route, you'd get student finance (subject to income assessment etc) and there's extra help available towards childcare available. Whichever uni you attend might also have some student support packages in place to top that up, through bursaries or hardship grants, it just depends which institution you attend.