No. You are not Head of Household if you live with your spouse--whether your spouse works or not. That is not what Head of Household means. (You may be thinking of the Fred Flintstone definition of head of household)
If you are a married couple filing a joint return then unless you are both working and earning income you cannot get the childcare credit. The credit is for paying someone to take care of your child so you can work. If Mom does not work or attend school full time, you do not qualify for the childcare credit. Sending your child to preK or daycare under those circumstances is just a persona expense.
Here is how one files as Head of Household:
Am I Head of Household?
https://ttlc.intuit.com/questions/1894553-do-i-qualify-for-head-of-household
https://ttlc.intuit.com/questions/2900097-what-is-a-qualifying-person-for-head-of-household
If you qualify as Head of Household, when you enter your filing status (single or married filing separately) into MyInfo, and then enter your qualifying dependent, TurboTax will offer HOH as your filing status.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
