I was the same with my 2nd litle one. I looked like i was falling apart at the seems. Pregnancy bloom? I wasn#t even close. Tried a few things to keep myself looking half decent but gave up after a couple of months. Men have it so easy!
Sometimes they just go throgh phases of not sleeping properly. You could try some of the advice listed here http://www.womenrepublic.co.uk/family_pregnancy/sleep/ but in all honesty you may just need to put up with it for a while.
I've started to become obsessed about not catching a cold when I go out. I think I may be turning into my mother. So if you see a women in her thirties wearing a full length coat, scarf and gloves in the summer - that'll be me.
For all you men whose wives/girlfriends get a little grumpy at that certain time of the month - get her to try some of these period tips. It may make her feel a bit better, but boy it will make your life a hell of a lot easier!