you know something… some doctors and professionals will say its impossible to tell that early, but i have to disagree. as soon as a week after me and the guy had unprotected sex, i started getting my first symptoms.
However.. just to let you know.. we had unprotected sex the 23rd of february, and i did not take a test until march 19th. I think that is about 3 almost 3 and a half weeks. Buy a "first response: early" test if you can. I bought that and 2 different brands, and the only one to give me a positive was the first response. I later found out that the other tests would only read positive with higher amounts of HCG (pregnancy hormone)