10dpo too early?

Moira

Followed my cycle on the app and last period was 5th aug. Cycle is usually 26 days. Ovulated Fri/sat 19/20th. I’m roughly 9/10dpo and BFN ☹️ sore boobs, what I thought yesterday was implantation bleeding, some cramping, exhausted and emotions all over the place. Am I still testing too early?