tl;Dr - I am pregnant and struggling with my toddler, while DH is stressed. He keeps staying up late to 'unwind' and then sleeping in late. I think this is making the situation worse but he says he needs that time/sleep when he can get it
DH has a much more busy and stressful job than me. Mine pays almost the same but I can work from home and stressful periods are rare. This has been the case for our whole relationship, and therefore I've always done almost all of the housework (in theory his only job is bins, but I have to remind him if I want him to do it/anything) and he does DIY and bigger upkeep jobs when he gets time. Since we've had our 2yo I've also done most nursery pick ups and drop offs, probably about 6 of 8 most weeks.
I've always wanted him to help more with regular housework but accepted it's part of his stressful job. Now I'm 30 weeks pregnant and I am struggling with the double pick ups most days (I walk as he takes the car to work), the fact that the 2yo prefers DH (I think probably because I have to do all the boring stuff when I'm looking after her, while he can just take her on days out or sit with her while I'm tidying etc), and at the moment none of the DIY jobs are getting done because he's too busy at work. He's also obese, has related health issues, and is getting bigger - says he doesn't have time to sort it out. I don't ever bring it up because it upsets him but I am really scared about 2yo losing their dad to one or other of these issues. He eats mostly the same as me (healthy weight) at home so I think the issue is what he eats at work/when I'm alseep. At the moment he's in a busy period and has lots of things he wants to finish before no2 arrives so there is more for him to do than usual.
Last night I went to bed at 10, he said he wanted a snack and to 'unwind' for a bit (we'd watched an hour or so of TV together already). This morning when 2yo got up at 7 he rolled over and went back to sleep so I took her downstairs. Got to 8 and I text him to say he should get up if he's got work to do. I could see he'd seen WhatsApp at midnight last night so don't know how late he stayed up. There was also a multi pack of crisps in the bin. I woke him up at 8:30 and said it was ridiculous to stay up late and sleep in if he's stressed about the amount he's got to do. I also said if he went to bed earlier it might stop his excessive eating. He is upset with me, said well thanks for trying to understand and has been in the office all day today.
I'm just shattered and frustrated and starting to get worried about our marriage surviving two children. Should I be doing more to understand/help or am I reasonable wanting him to try to manage things a bit better? Either way, apart from not complaining, what can I actually do to help?