I am experiencing something similar atm with DH. We went through a very brief split and now we are working together to try and get back on track. The reason for the split was finances. I am pg and unable to find work to match my qualifications, so I have taken a part time bar job partly to ease the stress and also to get me out of the house occasionally.
When we were going through our split, my parents were wonderful and would have DD at the drop of a hat. Now we are back together, it is a struggle getting them to have her, but they do both work full time so I am understanding of this. I have tried to explain to DH that my little job gives me time to be me, rather than mummy, plus it is helping him financially as he doesn't feel he has to pay for everything. The money is crap, but it is better than nothing. I have asked him to come home early twice this week as I have been offered loads of shifts which will earn me about £150. His job is flexible so he can come and go as he pleases, but refuses on the grounds that he can potentially earn more than me.
So, as a result, I have had to forego 2 shifts this week and it pisses me off. In one breath he is saying we need the help and then in the other, refuses to be helpful so I can go and do these things. It is so annoying, plus I feel that I am letting my boss down by keep chopping and changing shifts.
So, no YANBU. Your DH should be more supportive of you, after all you are not just a wife and mother. Why don't these men understand that?
DH was one for me staying at home and doing housewifery. He got told bollocks and I went off to college and work and trained as a nursery nurse. Gave me something to do, was something I wanted to do. Again, he wasn't very supportive, because I 'wanted DD' (he was given the choice - stay or go) and apparently, the man is supposed to be the breadwinner. You have my total sympathy.