BFN 10dpo. All my apps say different things!

Hailee
My period is expected on the 13th according to glow. The 16th according to ovia and period diary, and the 17th according to pink pad. Glow had me due the 17th until I logged a positive opk, then it changed to the 13th. Idk what to go off of... I don't even know if I'm testing too early at this point. Any feedback?