Confused and Annoyed

I use two different apps to help me with ovulation tracking. Obviously Glow and Flo. Flo has me 11 dpo today where Glow has me at 9 dpo today. They’re normally about the same or at least a day off. I’m anxious because I think I have experienced some symptoms BUT I also know they double with PMS symptoms. 🙄 I had a first response DIGITAL test left over from March of this year and just decided to take it. (It hasn’t expired) It’s negative and now I’m confused because of course I am still having hope that I tested to early and then I’m thinking about the other reviews I heard about the digital not being able to pick up hcg that soon. (Last time I used it I got a positive but it was after I had missed my period) Someone tell me their experience, i am sure someone on here has had something similar happen.