How far along were you before you found out you expecting?

Kendall
I know the week I conceived. I was visiting my fiancé in Japan from May 21-31. I tested June 7th and got an extremely faint positive. Took 652738 more tests that were all positive.
Went to my first ultrasound and it looks like I conceived on the 27th (rough estimate obviously) so I was technically 3w4d and found out only 11 days after conception!
When did everyone else find out?!