Wow! An unexpected reaction from some people! I have no intention of leaving or of getting a divorce, so not sure why my question sounds grabby!
OH does work hard, as do I. I work full time from home in a professional but not highly paid job in publishing, a decision we have made together to benefit the family, as it means that the children have not had to be in childcare. I had five years as a SAHP when the children were small, this has also influenced my low earnings as obviously my career progression during this time was halted.
I have always done the vast majority of the childcare, housework and all the many other menial tasks that are needed to run a household, and I continue to do so now while working full-time hours. These tasks are important too, the fact that I do them means that OH is free to continue to work at his well-paid job but demanding job. We have decided together to take on these roles because this is how we feel we are best able to have a financially stable household but well-managed household.
It seems unfair, I think, that the overall contribution I have made to the household as a whole (which I judge to be equal to OH, though different) results in such a lack of provision for any of the possible eventualities of the future, while OH is steadily building up a really decent retirement pot! And if one day we do have issues, I would like to be 100% sure that I don't have to choose to remain married because I am financially dependent on my husband.
Just to note, OH entirely agrees with me about this, we share the household money completely and he is definitely not trying to squirrel it away from me! It's just hard to find a solution that doesn't involve the household ending up with less money overall.
There are some great ideas here though, and its good to know that in the unlikely event of a breakup, that my contribution would be taken into account.