Well first let me say congratulations! And I'm really, really sorry to hear what happened with your last pregnancy--that must've been a terrible time for you.
Are you feeling "bad" about the pregnancy because you're scared that what happened last time might happen again, or is it just that you're emotional in general about the pregnancy? As I'm sure you know, the raging hormones can definitely bring some crazy emotions to a pregnant woman, I feel the same way. I'm currently 7 weeks pregnant, and I react to some things in a way that I would never react if I wasn't pregnant, so you have to remember to take it easy on yourself. And it just seems like every emotion is SO exaggerated! I almost cried at the beginning of The Price is Right the other day because when they were calling down the contestants, they were just so happy, it made me feel so happy too! I know it's completely ridiculous... But then later on in the show I was shouting and yelling at the tv because someone made such a stupid bid, and I felt so angry. So yeah, you're comptely normal for having crazy emotions.
Don't feel ashamed for being pregnant--if you want this, then just take what anybody else thinks or says to you as a grain of salt... It's really nobody else's buisness, right?
Let us know how you're doing, hon. Take care.