Question ????

Veronica
So on my app and from my LMP I should be around 8wks 3days  . But since I'm just thinking I know we didn't "try " until 2weeks after my LMP so my guess that I should be around 6weeks . I have my 1st ultrasound I'm not sure if I should expect a 6wk or a 8 wk size baby ??? Sorry I'm just confused.