Besides the insanity of that stupid daycare suggestion, you do not want to "save money" right now. During divorce you do not want to change your lifestyle or spending habits. Also, DO NOT ALLOW THIS!!! He may try to use it to gain full-custody of your daughter with OW as the full-time mom. Yikes!!!
Can you drive your daughter to day care? If necessary spend more money to have her go earlier, or work later or less so you can do this.
There is no arriving, ever. It is all a continual becoming.