So I'm terrible about testing early!! I start like a week before AF is supposed to show and always bum myself out and freak! Why I continue to do it? Idk! Lol. I took one of those walmart cheapies this am and it of course was negative at 10 dpo. I started to worry and feel like I was out but then I looked up the sensitivity for the test (first signal: 25 mui/ml). Then I found this awesome chart that gives average hcg levels for pregnant women by dpo!! It made me feel so much better! Hope you guys find it as helpful as I did!