Yanling,
My doc did not point out the white thing outside, just say "cannot see". But he was confident it is a real pregnancy and it is at an early stage.
This is my second pregnancy, so maybe I am less kan chiong. For first kid, my first doc visit was when I had spotting, and I could see the water bag then (5wk2d). Compared to the first one, this check-up timing is slightly early. Since baby is so tiny, it can grow very fast within those few days.
Cannot see, or no morning sickness may not mean anything is wrong. (Am I too optimistic?) Just wait a few more days or one week to check again.
Have a good rest, we will all pray for you. You will see the waterbag, heartbeat soon.