I hate being pregnant too! I'm 16 weeks with no 3 and it's horrible, I've been miserable most of the time and I feel guilty about it and hate myself when I should just be happy to be pregnant, especially when other people on Mumsnet are losing the babies they wanted so much.
Dot I really worried about Post natal depression too cos I get seasonal depression most winters so thought I might be susceptible but it's totally different, I actually found it much easier to be happy after the birth with a little baby than through pregnancy when I am a miserable cow.
And I HATE people saying "Oh mid-trimester, you must be entering the blooming randy phase now, I couldn't stop having sex for 3 months". NO I am tired with no libido for all 9 months.....