I'm DD jumping but just want to say I think it's totally normal! Even with a planned pregnancy! Mine was planned, and though I was thrilled for the first few weeks, now that the MS/hangover symptoms are still going strong, plus with a gestational diabetes diagnosis on top of it, I've found myself less and less "excited".... It's more like, hurry up and get this first trimester over so I can feel better--not just physically, but emotionally too. My DH wants to think of names, nursery ideas, etc--and I have a hard time meeting his enthusiasm, which hurts his feelings, I know... And then I feel guilty because I know I should be more excited, but I'm not... And sometimes that kind of pressure--pressure to feel joy because others do, because it feels like something's wrong with us if we don't--makes things worse, you know? At least in my case. I would suggest doing things that make you feel good now, and not worry about what you are "supposed" to be feeling.. Just take it one day at a time and try to seek pleasure from other aspects in your life right now. That's what I've been doing--focusing on football season, on school and autumn activities with my two stepsons, family bdays, etc--and it's been helping so far.
Have two amazing step 's... and a baby on the way! Due April 2, 2012!