Working PT with a newborn?

First time mom here so please be nice. My little girl is 9 days old so new mama as well.

I was planning to send my baby to daycare at 10 weeks. I work from home and only get 6 weeks maternity leave but my boss said I can “slow roll back in”, so that I can hold off on sending her in at 6 weeks.

I work for a small company so the management has been pretty flexible and understanding. I’m salary and my job is in marketing and social media so I do have the benefit of working very flexible hours.

Once the baby was born, my whole outlook on daycare changed. Now I just think 10 weeks is too soon for daycare. And I just can’t imagine parting with her while she’s so little. I’d like to keep her home until 1 year if possible. Maybe 18 months.

My idea: I will cut my job in half and work 20 hours a week vs 40 hours, and keep the baby at home for the first year. I’ll work 4 hours per day as I have the time (As long as my boss approves this).

My question: is this completely out of the question? Is it too difficult? We also have a dog but we have a fenced in yard so that shouldn’t be too much of an issue. My husband works in office T-Th and at home M/F so he can also help on those days.

Has anyone balanced this before?