you opinion on counting my weeks! help please!

Olga
Due on the 22nd according to a 11 week (private scan) and also according to the 13 week (dating scan), but that is 5 days ahead if I count 40 weeks from my LMP...I'm so tempted to be celebrating like you lot tomorrow (when I'm 14 weeks according to both scans) but hear a lot of people saying don't...stick to your original dates. Which mean only 13+2 today....what's you opinion on it?? 🙄 Sorry a bit OCD about it lol!