I'm 99% sure it is but look closely.....does this look anything like female buds? Are those definitely football sacks. Is it POSSIBLE this could be female?
Definitely male. Female flowers don't have those clusters of sacks, only the males. A female would have just one little sacky-looking thing with white "hairs" (pistils) growing out of it.
I know how you feel, though. Woke up this morning to find FOUR out of my 5 plants are definitely male. I'd suspected as much, but I was still hopeful (like you).