Hermaphrodite?

It's a hermie and going off the pictures it's overly crowded in there, if air isn't getting threw yiur plants your asking for trouble, thinning the leaves will give these plants a quicker growth and less stress which is what causes of herm other than genes.. because she doesn't think she will last to end of life she's pollenating herself, you want to remove those balls carefully and discard, if they are everywhere you might be best growing the lot, your call