I have never reduced my hours, other than periods of maternity leave. But periods of maternity leave, as I only get statutory, have cost me about £40k in lost salary. I work 9 -5.30 five days a week, but I earn more than DH.
DH pays the mortgage which basically takes most of his salary, I pay for the rest, which when we lived in our old house, even with FT nursery fees was manageable. Unfortunately after DH getting a pay cut and me not getting pay rises and three kids the balance is now that I should have made DH realise where we were financially rather than burying my head.
I have now done this and, as mentioned already, DH is helping, he just has to do it his way, which does mean I need to wear the hair shirt for a while.
Yes, nursery fees are madness (SW London) I have 18 months before DD2 starts school. Whether she does term time only 1 day a week at her existing nursery will depend on what they can offer, but obviously term time only gives them less income and prevents them taking a FT child so I can see that, for them, running a business it makes more sense not to accommodate me. We shall see