u turned it hermie. it pollinated its self. this happened to my first ever 4 clones. bad shit. mine give me headace when i smoked the unformed seeds. there hard to see.
do you have any males.if so it will be them.but if you dont have any males around, i think you have a hermie problem. if so dont plant the seeds cos all youll ever have is hermies, and there hard to tell if they are, they self pollinate and the growing seeds steel all the bud.