What kind of contraception are you using op? This is something you need to be locking down as a priority.
I was a sahm and while the dc were small, dh came home every evening and got stuck in to whatever needed doing. He absolutely wasn’t expecting to do less than he had as a bachelor - he could cook and clean for himself before we got together. During the period where I was waking multiple times a night, he either did the first or last feed of the day, and left breakfast ready for me and a sandwich in the fridge for my lunch.
As things got less intense with the dc, I took over more, and his life got easier but we’ve always been in it together. The house got chaotic at times and at one point we hit on the idea of him taking over bath and bedtime in the evenings, while I cleaned and tidied with my earphones in. It was one of the best things we did - helped him get more confident with the dc, helped them bond with him and gave me a break of sorts.
For a number of reasons, I stayed a sahm when the dc went to school, and then dh did get to enjoy the hot dinner on the table lifestyle, with most of the housework taken care of. That just wasn’t possible in the early years.
I’m not sharing this to be smug- I’m sharing what a good man does, what normal expectations of support should be. We were also tired, cranky and had our rows.
There’s nothing normal in what you’re describing. Searching for dust up high is borderline sociopathic - or at the very least deeply weird. You might not have the headspace right now to think clearly about your situation, relationship and future, because right now you’re in the trenches. But one day soon it will start to get easier, and whether you’ll be able to forgive him (or her) remains to be seen.
For now though, the most important thing you can do is to ensure that your contraception is rock solid and securely under your control.