"If my W is having Easter with them then I think it's fair to have them home for an extra day or two."

Easter or not, it's fair to have them home half the time they're available if you're available.

Me: 31, W: 29
T: 4 M: 2
Kids: 3 (SS: 7, SD: 4, D: 3)
Separated, still living together: Nov 2013
Separate bedrooms: Feb 2014
W working away; kids with me: Nov 2014