How will your child care situation change, if at all, with more than 1?

Currently M is in daycare 5 days a week. We thought with 2, possibly my husband watches them 1 day a week, maybe ILs 1 day a week. That way we'll only be paying for 3 days a week. And possibly if I could get away with working from home 1 day taking it down to 2 days a week of day care?