J.K.
First off, you absolutely have to stop thinking that the baby's father "watches him" on Monday. He is a parent, just like you, and is not a babysitter.
Your mother is a babysitter.
Your mother has raised kids so she's more comfortable and knowledgeable. Your husband has to learn in the same way you do and in the same way your mother did back in the day.
Your husband is your equal and must be 100% engaged to the same level you are. You and your husband need to be 50/50 in childcare when you're both at home.
You're in the Moment of Truth period of your relationship. This is where you and your husband set the course of the entire rest of your marriage, and parenting careers.