Female plants are pollinated by male plants. Only male plants produce pollen unless the plant is hermaphrodite then it will have both male and female flowers, which will pollinate itself. Hermaphrodites are not good. The ratio of male and female seeds under normal circumstances is approx. 50/50 (half of them male, half of them female). If you already have female plants growing at the moment I would take cuttings from it and restart your crop that way; I would store the seeds and keep them for a later time, when you really need them. Do you have male plants in your grow-room? If not, and your plant has produced a few seeds then you've got a hermaphrodite.