Op, can you tell us whether you have an ISA, as well as him and kids, and if not, why not. I suggest this should also be a priority as well as a pension, it is money in your name only, that you can access immediately if he died, became too ill to manage accounts etc.
I have always worked, but PT, 3 days, since having DC. DH has always worked FT and been the higher earner because of that.
However, we have paid equally into ISAs, and due to growth I actually have more than him. However, it has always been a case of all money being joint, and the fact that I earned less due to looking after kids, is irrelevant, it didnt make me less worthy of ISA money.
This year the pendulum has swung the other way, we can afford to put the max 20k into both ISAs, thanks to an inheritance of mine, and a share windfall from my employers being sold off. Obviously if DH had been of the opinion that his ISA deserved more when he earned more, I would have been less inclined to share the inheritance now. But again, it is all joint money in my view. The excess inheritance/windfall money is all in joint accounts.
Pensions have been slightly different, as DH is a Contractor with no Company pension, but he has still paid into a SIPP in my name from his LtD company (I am co sec), albeit not as much as to his SIPP, as I also have pensions with my main employer. Nevertheless, we both will have reasonable pension pots, as well as ISA pots.
Do you have access to joint money in current account(s), savings etc, or does he keep tight control of those? If you can set up DDs yourself, then please do so, both to a pension and an ISA. I would also question why DC have ISAs ahead of you?
I think you to ask why he sees you as less worthy of pension etc than him, and what his view is of the earned money. Does he see it as all shared?