Miscarriage???

Caro
I am 9w5d today. Just had my first ultrasound today. Dr couldn't see a yolk sac or hear/see heartbeat. Going back Monday to do blood work to see if hcg levels are dropping. Has anyone had this happen before? He said it will most likely be miscarriage and wasn't too hopeful. Also, baby looked small. Not as big as all ultrasounds of 9weeks that I have seen here.