LadyLala, I have been there and it isn't fun. It isn't easy to keep up with the kids and do everything on the daily list. It sure isn't easy to live up to others' unspoken expectations, either.
The best thing you can do for you is to turn off your inner critic. Heck, you've had two kids! It is hard to look like Paris Hilton after that... AND, you have enough to keep you busy that things like pampering yourself and spa days tend to go out the window.
You can be proud of all that you do and forgive yourself for what cannot get finished in a day. You can look at yourself and appreciate that you have been through a lot giving birth to the kids and caring for them -- and you are strong and bright and beautiful!
Do not let some one else's agenda pull you down -- even your husband's. See how he would fare in your shoes. Maybe it IS time for you to have a pamper day.
You have to take care of you, and then everything else falls into place.
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All things come together for good.