Just to add...
There's sometimes a kind of 'why on earth did you marry them??' response to women whose male partners do very little domestically, in terms of family organisation, and leave all the menial stuff to them.
Thing is - yes, the rose tinted goggles do go on at the start of a relationship, and it is easy to overlook things that become a problem later on. Esp when you're young and haven't a huge amount of experience of running a household or family yourself. It's rare that couples in the Romeo and Juliet phase talk about hoovering or who will book dentist's appointments for the hypothetical children.
And it often seems like men do more to start with, early on in a relationship. Then do less, and less - maternity leave I truly believe is a killer in terms of equal sharing of tasks. 'But I'm WORKING! You're at home! you should be doing the washing up/shopping/cooking/cleaning etc etc.' Yes - I know maternity leave is for babies. But there's the view that looking after baby and keeping house go hand in hand...
Cultural stereotypes and social programming run deep - the man who does a basic amount of housework in the first few months of a relationship (best foot forward and all that) probably doesn't imagine for a moment, deep down, that it will be a shared life long task.
Then there's the division of tasks. 'Well, yes, I am a woman and I do the 'house' stuff - the shopping, cooking, cleaning, laundry - but HE does all the DIY and looks after the garden, so we're definitely equal.'
Those tasks aren't equal. When a baby comes along,the domestic tasks grow, and alongside it come all the 'caring' tasks by extension. They are often emotionally demanding, pressing and have an immediacy that the more typically 'male ' jobs don't.
Shelves don't cry at you and demand to be put up at 3 in the morning, or 5 times a night. Lawns don't need to be mowed any more often once a baby is born, whereas doing, sorting and putting away laundry will be a bigger task.