I'm 32 myself, with a 15mo old boy. We managed to keep the boy out of daycare and spend more time with him because our employers were super flexible. My wife is only working 60% (some from home), and I'm only working Mon-Thurs. I get to watch the little guy on Friday when my wife goes to work. Very recently, I cut my hours (because I can) to 36, so that I could be home earlier (the little guys bed time creeps in early!).
I would highly highly recommend doing some sort of flexible schedule if you employer allows it. Especially cutting your hours a little. Like you, we're pretty disciplined savers (though, we're in a High COL area, and thus spend a little more), so cutting my hours was a no brainer. Money isn't everything.
Enjoy your girls