Wow nice looking plant! Your diary says week 5. Looking at the photo my guess is you are about 4 weeks away so 28 days. You should check the trichomes with a jeweler's loupe to be sure. Gl the rest of the grow!😎
At least 25 I would say maybe 30. Autos do tend to run way over the breeders guidelines. Though this isnt auto specific I think all breeders are guilty of it lol.