Scan tomorrow to check if Sac is still empty or ive got a baby - Your thoughts?

i had a similar problem. they thought i was going to miscarry because all they saw was a sac and nothing else, but i was dated farther along then i was. turns out i was a little over a week behind what they said, so everything turned out fine for us. i hope you have the same luck as i did. dating pregnancy isnt an exact science since so many women conceive at different times. last menstrual period is just a basic, general dating usually. good luck at your scan, and hope you see something!