Its a fucked up preflower or mutated growth. This is common and you shouldnt try to guess sex but wait for proper preflowers to turn up.
Its female but you need to learn to wait and sex out properly.
Before a preflower forms cells and satelites have to differentiate themselves into new structures, this dosent always go smoothly and localized mutations happen.
What can i say but teenagers are like this, she will grow out of it soon and properly bloom.