Is it normal?

I am pregnant with my second baby. We planned this one. I wanted to be pregnant so bad but now I'm miserable. I'm sick all the time and so tired. I feel depressed, which my mother did just pass away. So I'm sure that plays a big role. I just feel like there's not connection. Im almost 11 weeks and go for my first ultrasound Tuesday. I'm hoping seeing the baby will help, I do feel guilty. I don't ever remember feeling this way with my son.