Yeah, that really looks like bananas, you should pull them out with a wet tweezer. It's best to turn off all fans beforehand and ensure high humidity.
Or you could opt for an early harvest, but that's up to you to decide.
The buds look pretty decent for week 6.
Unfortunately I can't get a good view of the pictures, it could be fresh pistils forming or nannas forming, if its nannas they could polinate your grow area.