Thanks guys
DH did the SAHD thing for 5 months after I had to go back to work. But we decided that it would be better for us in the long run if he got himself in a position to support us, which meant going back to work, though not earning much in the near term.

I had intended sucking it up a while longer, which I know would probably be the sensible thing to do, but I'm not coping too well at the moment. DS is teething and I'm not getting much sleep. DH does lots with him and around the house, but at night DS wants boobies! Dh has tried staying up with him but then neither of them sleep at all.

In some ways quitting would be like killing the golden goose, though. the job is demanding and stressful, but my work arrangements are pretty flexible, the company is good to work for, the pay is good and I get to work from home so I see my boy a fair bit, even when I'm very busy. So that's good for him - he seems happy enough.
Unfortunately it's not possible to do part-time due to the nature of the job.

I just dunno...