Do you think I should call my doctor?

Just over 8 weeks and I just don’t feel pregnant. I feel so dumb typing this. I was nauseous and had sore boobs but a few days ago it seems to have gone away. No bleeding. I’ve had some cramping but everything I read says that’s normal and the loss of symptoms could possibly be bad.

Heartbeat was 155 at my first ultrasound last week.

Am I being crazy and over thinking this?