I have to agree with the Doobster. I don't see any balls on your plants either, I think what you may be mistaking for balls are VERY swollen calyxes that are isolated on lower nodes of the plant. How long have they been on there? Male flowers will open after about 10 days or so, so if they have been around longer than that and haven't opened, you should be fine. If you could give a better close up with the alleged nutsack, that would be good too.