How many weeks were you when you found out you were pregnant?

I found out in the hospital when I did a blood test at a checkup. It just so happened that the blood test also tested for hCG - the "pregnancy hormone". I was estimated to be 4 weeks along and went for my first scan at 6 weeks to determine the presence of a heartbeat, fetus and yolk sac. Thankfully, everything went well! I suppose I am one of the few who didn't need to pee on a stick to test for pregnancy as blood tests are far more accurate than any urine test.