I remember that vividly. It's horrible, isn't it, because you think you should be happy about things but you're not, you're miserable. I felt the same - I went to work, I didn't really eat, I threw up, I came home, I threw up, I had a nap, I tried to eat something, I threw up, I went to bed, and that was my day. No socialising, nothing fun, just tiredness and sickness and struggling through.
Basically, I'm just saying it's ok to feel like this. You're awash with hormones, you're exhausted, you're bored, and you're probably lonely too.
It does get better, I promise it does. Gradually you start to feel a little better, a little less sick, a little less exhausted.
It feels like forever when you're stuck in it but it will be a short (well, relatively, in your life) period. Can you get some new books, box sets, craft things to do? Also, I found being quite honest with my friends about how rubbish I was feeling and asking if someone could just pop around one evening for some in-house socialising helped - especially once they came around and watched me run off three times to be sick 
I did find that in the third trimester, when other people were feeling rubbish, that I was bouncing along as anything was better than being sick all the time!
It is horrible. But it is also ok to feel like this. Loads of women don't enjoy pregnancy and that's nothing to feel bad about. You don't have to love it just because you want to have a baby.
Just wallow. Don't do anything you don't want to do. Don't try and soldier on. It will get better gradually, I promise.