What to do

I got laid off after my maternal leave so Im sahm atm. We have a nanny 8-5 during weekdays so I can apply for jobs and prep for interview. Our baby is 4m old
Husband only helps 30mins maximum here and there. I still do all night shifts bc he sleeps in a different room and needs his sleep to do his job.
On weekends, I asked if he can help out with the baby or chores for couple hours. He got upset and said he has work. Am I the bad guy to be upset about this