yeah theres a banana near those little buds. full females express male sex flowers naturally as they end ripening or earlier due to genetics. there can be a banana in one of the surrounding buds hard to see. what strain is this? they also can express male flowers from illness and stress. you need to look very hard. you'll notice them a lot in a week or two. can you show me photos of all your girls? and specifically the lower and upper buds of the immediate surrounding plants. go search them for a while and take pics pf anything that looks weird. look for pistil tips to have the end thinned out or the pistils pulling in slightly. I'm not trying to alarm you, I'm trying to help you. this happened to my buddy recently with some lemon kush by female and cookies kush by barneys and we never found the first nanner but we definitely found seeds randomly in that whole crop.