misschief, so sorry to hear you are like this.... i'm 32 weeks into my 1st pregnancy and had really horrendous sleeping problems for the 1st 4-5 months, nearly did my head in. Could fall asleep no problem, but would then wake up anthing between 1-4 hours later and that would basically be it for the night. Tried everything (homeopathic, herbal etc), and eventually went to GP in tears asking for sleeping pills as I had nearly lost it (I work too, but don't have the demanding toddler, you poor thing! ).... I can't remember what I was given, but almost skipped home thinking "I'm going to sleep through the night! Hurrah!" (I must have been about 10-12 weeks then, still in late 1st trimester), went to bed, took my pill, fell asleep..... and was wide awake again by 2am. Tried for a 2nd night, same thing, so gave up. Really felt it was completely hormonal, I didn't get any morning sickness, so this must have been the replacement. On top of that, the sleep I did get was pretty crap (shallow, not deep, and in no way refreshing), and I found that a lot of it passed by about 16 weeks. I still don't sleep through the night, but the sleep I do get is decent, and I get 6-7 hours a night, not as good as 8-9 (which as a pg person I really feel I would like), but I grab what naps I can, when I can. One thing I will recommend as it really did help me, is Bach's Flower Remedy, "Olive" which is recommended for exhaustion due to sleeplessness, and on top of that I took some homeopathic mixture from Boots (by Nelsons I think, can't remember the name just now, will post it if/when I can). Also, poor old dh ended up in the spare room for a few weeks, as I found that almost the only thing that could get me back to sleep in those looooooong nights, was listening to the World Service; I think it gently bored me to sleep, and distracted my brain from waking up too fully, if you see what I mean.
Don't know if any of that rather long post was at all helpful , but just wanted to say that hopefully if you are like me, you are nearly through the worst of it, and that I do really recommend the Bach's remedy (from Holland and Barrett). Also, if your GP gave you the prescription, it's bound to be ok, but as my GP told me when he prescribed me whatever, just take it for a long as you have to to catch up on your sleep. The less the better for the baby. REALLY GOOD LUCK in sorting out your sleeping..... Oxx