LG&T, I completely understand why you're so worried. A very short term solution is that if the kids were "stuck" at school, you could get a local, trusted minicab company to pick them up. How many are in school? 4? They'd all fit in one cab. Not ideal, but you wouldn't have to panic about getting them home. A good cab company would send a trusted driver and give you the reg number of the car that was going and everything, so the school could be informed.
If you had to be transferred to hospital, well frankly, it would be no different now to if you had some other medical emergency (God forbid) and had to call an ambulance. I would assume that some sort of emergency police/ social services liason person would be called to the house until care the form of your SIL, friend or emergency foster person was found. They wouldn't leave your kids alone. And although emergency foster care isn't what you'd choose, at least they'd be being looked after, iyswim. The chances of that happening are so tiny anyway. N is a few hours away, but if you went into hospital and were kept in, would the Navy give him immediate compassionate leave to get home to the kids?
I liked the idea of different family member coming to stay. That sounded sensible, if it were feasible.
So that's the "staying in Portsmouth" scenario, but I know you really want to be near N when it all happens. Could you you speak to the school to see if some sort of casual/ short term transfer can be arranged, as there are extenuating circumstances. If that were possible, rather than enrolling, and then re-enrolling, then that would be something.
SOH, @ your DH. I finally got a lightbulb on the stairs last night. Went to go down the cellar this morning and discovered the bulb by the cellar door missing - had been removed to replace the stairway bulb and even though it didn't fit, it's now hanging about upstairs somewhere. I had to laugh. Have ordered about 10 bulbs with the shopping tonight. I will have a fully lit house eventually.
Hating being back at work and I've only been here for just over an hour. Nobody is interested in doing maternity cover for my job, though frankly I wouldn't be interested in a year's contract here either. It's all the insecurity of temping with the commitment of a permanent job.