I'm not sure how early I could have gotten mine. I just waited until temp stayed up dpo17 bc that's the magical number according to tcoyf. Also, I cant find the exact link but this might be helpful: https://www.countdowntopregnancy.com/pregnancy-test/when-to-take-a-pregnancy-test.php
I remem seeing a bar graph on this site that said although the avg day for getting a positive is 12, thats the avg! So there werea ton of people who got it a wk or more later! Good luck. Keep us posted....I'm rooting for you!