Am I being thick?

Charlotte

So I found out on Friday I’m pregnant 🤰🏻😍

But my last period was 24th feb to 1st March, and I ovulated on the 9th of March which was CD15.

My digital test is saying 2-3 weeks and you have to add a week so I would of been 4 weeks, the app said the same, the app is now saying I’m 4 week and 4 days but how Can I be that far gone when I only ovulated 18 days ago? 😭🤣 .

Am I actually being stupid or what? 🤣