back to school? ftm

Samantha • Leila Jade's mommy 👶🏼💘
I plan on not working an actual job after baby is born in November instead I will be baby sitting where I can bring baby, if I can find a gig (Praying) ... But I plan to go back to school probably a night school to become an ultra sound tech.. What age is good to start leaving baby at home with her dad so mom can continue her education at a night school ?