...yeap, yeap...you have a hermie. If you grew the plant from seed, you've grown a cross gender plant. If you got it from a known female's clone, you've stressed the plant to cross gender.
Most hermie related stress is due to temps being too hot, light leaks, bad air circulation, exc...furthermore, a sensimilla plant is on an endless mission to reproduce, therefore, any stress can cause a female to cross gender, which in turn produces pollensacks. The pollensacks release pollen into the air during bloom. The pollen sticks to the female pistols, or hairs....and this is called pollination. Pollinaton = seeds, and by the way, the seeds will produce hermi also.