Flexible Infant Care - Denver, CO Area

Hello, my wife and I are looking for flexible infant care for our 7 month old. My wife is a nurse so she works 3 days a week, but the days can vary from week to week. We do know her schedule a month in advance, each month. We are looking for day care where we can have care for the days needed rather than set days (ie. Mondays and Fridays). Does anyone here have any info of care centers that are flexible like this? Preferably somewhere around south Denver/ Englewood area.

Thanks for any and all info!