Ummm if its been 3 weeks since u had sex id say it was pretty accurate. Ummm some ppl say to stop bc if u think ur pregnant n otheres say it wont hurt the baby ... Id just start takin it that way u know nothin will happen and if u dont get ur period next month then call the dr for a blood test. I know its a long time to wait but sometimes its just stress ... I know u hate hearin it because I do to. But let us know how it goes!!!
Gl I hope everything turns out the way u want it to