Oh snap! Welcome to the hermie club. Good job removing, but they're already open, so don't be upset if you get a few seeds in the end. It won't ruin your weed, but the seeds will have strong likelihood of being hermaphrodites. After this grow clean your space very thoroughly with bleach water. And stay on the lookout for more nanners. My nanners usually showed up at the base of the buds and the buds lower on my plant. But they can pop up all over.
Happy harvesting.✌️