A.W.
I would suggest stretching as often as you can. Try lifting with your legs as much as possible (I know this is a challenge). Also, I have found that if I stengthen my core my back feels a lot better. Try doing some ab exercises everynight after the kids go to bed and see if it helps.
This also sounds like a great opportunity to ask your hubby for a massage. You could return the favor if that helps entice him! Good luck.