Dh and I have a 9 month old daughter. We both work from home, me full time, and him 2 days a week and 3 in the office.
We are in the fortunate position to have my mum looking after our daughter most days. We do pay her £300 a month which I understand is not very much in the grand scheme of things.
In my job I am required to control the business phone line and inbox for around 15 hours a week. During the times when I am doing this, or have lots of meetings, I do try and make sure I have my mum on hand, but not always if it is going to be quiet.
My mum lives 12 miles away so getting a baby who hates car rides into the car and driving that far in rush hour with her screaming is quite stressful, so if I CAN avoid having her look after little one I always do that.
My main gripe is that on the days that I decide not to have my mum help out, I do sometimes ask dh if he can watch our daughter for 30 mins if I get an unexpected meeting request or call from someone. He normally has an issue with it and says "I am working, you should have asked your mum to help today!". He does probably have more of an 'important' job than me, but a lot of the time when I walk in the office he has youtube/ a game on his other screen!
Since I returned to work his working week has not changed AT ALL unlike mine. I organised the childcare with my mum for a low price, I take our daughter there, I wfh either WHILST looking after our daughter, or in my parents house with my daughter downstairs where my lunchbreaks are basically used to give my mum a break. We pay 50/50 on bills so its not even like he pays more.
He doesn't get the guilt of not wanting to burn his mum out and not wanting to take the p* with her kindness, and having the stress of taxiing a screaming baby around.
So AIBU to ask him to occasionally step in to care for our daughter every now and then during the week?