seeds when there shudnt be seeds?!

hello people,
i have a few plants growing and on some of them on individual clusters i have noticed small seeds starting to form inside the calyxes even though they havent been fertilized the seeds have only jus started to form as the flowers have come to a sensimillia finish. it is weird. any suggestions?

ur plant may have had one small male flower on it, are all the seeds in the same place on the plant?this happened to a plant of mine and i got 5 seeds out of an ounce of bud