I wasn't going to contribute to this one, but I can't let that comment stand.
The pension is fine as it is now, but there has already been a significant change since I joined (and many minor, less impactful changes, which, however, still meant less will be paid out in the end). It means we now contribute more for far less reward. Also bear in mind that this is not a saved pot and all goes to contributing towards current retirees, NOT our actual future pension, and the scheme is not deemed viable on a regular basis, so who know what we will actually get in 30 years' time.
Pay is not portable, meaning if you change jobs you may end up with lower pay and have to jump through all the hoops again. Appraisal targets are often unreasonable in the hope that some will not reach them and progress every year (I have had targets of predicting grades with 99% accuracy and of having 100% of students getting their target grade or above, both of which are not fully in my hands to control). Don't get me started on the hoops to go through to UPS, which has been denied to me for almost 10 years despite evidence and if I hadn't had a lovely HR woman fight my corner (and be bullied out later, partially as a result of this) and prove the head was lying to get out of paying me UPS then I'd likely still be on mainscale.
I do not, however, like the point others make about the cap being UPS3. In any job there is a maximum if you insist on not taking on more responsibility, so I see progression to head of department, assistant head etc. all through the lens of pay progression.
All that said, the points are moot. OP, you have a husband who can provide the childcare. If you find a different career you may find that you don't need the holidays bar physical childcare - emotionally, you will likely be far more relaxed (the job I did for a while felt like a holiday in comparison).