Vent about stupid argument

I’ve been working since I was 16 and have always been very independent. I love knowing that I have a purpose for something other than home life. With that said, I’m an accounting manager and unfortunately my company doesn’t have a maternity leave policy and I didn’t want to take a 40% pay cut with CA paid family leave so I made a deal with my work to take 2 weeks completely off then work from home for 10 weeks. Working from home with her for the past 5 weeks has been really hard! Between work, taking care of her, trying to find time to clean, half ass get myself ready so I’m not a mess.. it’s really really hard. I can’t 100% focus on anything and I only work between her napping so I feel like I don’t accomplish a lot in a day. Well I’m getting ready to go back in 2.5 weeks but I was thinking about asking my boss to allow me to continue working from home 2 days a week so that our little girl only has to go to daycare 3 days a week. I feel like this is reasonable but my SO, even though we knew the agreement with my company was to go back full time in 2.5 weeks, is completely upset with me that I won’t ask for more time to work from home full time. He thinks I’m being selfish because I want to work in the office and thinks I can do my job from home and should have no problem. He said he knows it’s not “easy” but sees no reason why I need to go into the office. To be honest I want to go to the office and have a bit of a break! He has no idea what it’s like to juggle all of this and I hate that it’s making us fight. I want to be with my little girl, but I need to do my job. Quitting is out of the question and I don’t want to, this is just so ridiculous and making me feel like I’m a bad mom.

Sorry for the vent, I just need to get it out somewhere