Thanks everyone! Really great insights for me. I spoke with my boss and have decided to stay at home, largely based on some of your insights. The work load expectation was higher than I could do on a PT, salaried basis (in my opinion) and it was going to shift largely into the grunt work that no one likes to do. Also, talks of "getting things done despite part time hours", aka, working on your own time. Based on that, I realized it would be better for me to say no to the position.
It feels really good to have looked at all the options and picked the one that worked best for myself and my family. I am not sure how long I will maintain my status as a SAHM, but I have a lot of confidence that when/if I return to work I will find something worth going back for!
This sounds like the best move, honestly.
In my first job with my first baby, the company policy was that part time was hourly. So I had a baby in our small subsidiary right before another woman. She went back part time. My supervisor suggested that I take a demotion and no longer manage my 2-people. I said "no thanks" and continued full time.
However, that boss left when my son was 1 year old, so at 1.5 years, I asked my new boss to go part time. He said yes, and no demotion required. So that was great. I was nominally on 30 hours, but if I ended up working 35, I got paid for it. (Important, because at 30 hours, i still needed FT daycare). The good part about the job aspect is that I didn't do grunt work - on the contrary, I offloaded the grunt work to the 2 guys who worked for me - and we called it allowing them to grow. (And it really was helping them learn new skills, I was quite senior to them.)
I also trained my two contemporaries to plan better. If they needed summary data for the Friday 8:30 am meeting, then they needed to ask me before 1 pm on Thursday. There was a history of them asking for data at 3 pm when I left at 3:30 pm.
Alas, sadly, we got new management that told me they didn't believe in part time work. Yes, the other woman was still part time.
So I quit to go work for the old boss, but part time.
That other woman was pressured to work more and more hours, and travel more. She eventually quit and went into consulting.
A third woman married shortly after I left and had a baby, and went back part time. They were a bit nicer to her, but as they pressured her into more hours, she quit.
Woman #4 has a 1 year old baby, and I think she's still part time.
Anyway, my new company was "salary part time". As we ramped up, I found myself getting paid for 30 hours but working 35 hours. At that point, my son was 3 and and I agreed to go full time (5 extra hours of work for 10 extra hours of pay).
The "working on your own time" is what can eat into your life. Not that I don't work weekends, etc - I was more likely to be the person here on the weekend, BUT I also could not stay late because I had to pick up the kid.
Fast forward, second baby. New company, great new boss (at this point there are a few layers between me and "old boss"). Came back pretty early but at 25 hours a week (hourly) and then came back at 32 hours/week (salaried). I was much better at setting boundaries, and I also had a team of 6 people working for me by now - so again, I worked on the important stuff and empowered my employees and trained them to do the other stuff.
I eventually went full time when my son was 1 (many reasons, namely I felt I needed more time at the office to do my job effectively). My team was laid off 10 days later. So, yeah, I regret going back full time.
Wow, that was long - but just wanted to repeat that it sounds like you are doing the right thing here. Although were it me, I would probably still work part time and try to make it what *I* wanted it to be first. Meaning - sure they want you to do the grunt work, and work at home and such - but honestly, you can refuse to do that. Best case, you do a great job at what you like to do, they appreciate your work and your dedication, and they change their "attitude" on what it's like to have a mother working part time.
Worst case, they dump the grunt work on you anyway, are unhappy that you aren't doing 45 hours of work in 30, and grumble at you. In which case, you quit. This is more what I did and other coworkers did -it's almost like I felt it was my duty to try and set things up a certain way for others and prove what is possible. Especially hard for a woman in my area of tech. And when I hit a wall (forcing me back to FT), I quit.