Wouldn't that put you at 12dpo or so? The doctor pee tests are supposed to be about the same as the early response tests at the store ... usually can detect a pretty small amount of hcg, if I remember correctly. So, I would think 2 weeks past conception would put you at about 4 weeks pregnant, which should put you quite near missing AF. So, yea, I think a positive at the doctors would be accurate. JMHO though.