is it normal not to feel pregnant?

I'm about 9 weeks pregnant. And I don't feel pregnant. I don't have morning sickness I don't get naseaus and the only Thing is I'm sleepy all the time. is it normal not to feel pregnant. I worry about it my last appointment was on February 8th and my doctor did an ultrasound and I saw my baby and it's heart beat. so I know I have a baby in here.