High buddy,
Yes those are bananas. You want to check all the buds and start of the nodes for bananas and even worse balls (male flowers). You carefully pick them off the plant with tweezers. Make sure that you do not rip them open!!!
It does happen sometimes with vunerable genetics and stress. It is not the end of the world. But a check once a week would be good to prevent seeds in your buds.
If there are a lot of seeds in your buds you can always still make bubble hash, rosin, oil or edibles.
Next to that banana your plant does look great buddy!
Happy Growing! 💚