Possible conception date!

Kaylie • May 2018 💙 & August 2019 💕🤰🏼

I'm looking for a likely conception date so I can figure out how far along I am or if my baby really isn't growing as planned! lmp was August 14th. I tested positive September 12th. I just had an early ultrasound yesterday due to bleeding and she said I looked more like 5 weeks along. (I thought I was over 6 weeks.) any guesses for possible dates of conception?! I thought it would have been more specific than that.