CoolKat, I was exactly the same at the beginning of this PG, felt so crap and that I that in a way I couldn't even be scared of another mc , just that I was being a bad mother to DS and was it fair to put him through all this, so I can really sympathise with what you're feeling. It DOES pass and you WILL feel better (but probably not just yet). If you get really down do take steps as for any other depression, be it yoga, counselling, anti-d's, whatever works for you. I can recommend Patrick Holford's book on Optimum Nutrition in Pregnancy (to be read with a pinch of salt tho...), just for his suggestions high-dose vitamin/mineral supplements, they've given me a such a boost in the last 3months that I've been able me to come off the Prozac I've been on since June last year - yay! DH very pleased as my sex drive is slowly returning... I think he was hoping that I'd be as horny this time as when PG with DS, no such luck!
PS Have found several of you on Facebook (EllieG, ALBS, DonDons, Kate2179 and someone who I know is from here but who??), who else is there? I'm in the Zambia network and the Mumsnet group, come be my FB friends!