Should i be worried?..

I had an US at tech lab and going to dr in 2 weeks.

US tec sounded happy with what she saw, we heard the heartbeat,etc.

And then i came home and read the summary.

It states that the gestational sac size is 22-23mm and matches 6w5d

And the CLR( the size of the embryo) is 16mm whitch matches 8w.

8 weeks matches my calculations.

Should i be worried that the gestational sac is too small?..