is this a man or herma ?

Can't see if it hermed in the picture, it's the wron angle and too far away, it looks like it's pregnant, so something in your grow room is most likely pollinating your plants. When you look for male parts AKA nanners, look at the underside of the buds and see if there are tiny 2-3mm banana looking things that have different stages of maturity: Stage 1 - nanner(s) beginning to protrude from the flowers (at this stage they're still not throwing pollen and if there are only a few it's sometimes possible to pinch them off and not see nanners for the rest of the grow) Stage 2 - green-yellow fresh looking closed nanners hanging in clusters (at this stage you cull the plant right away and hope you didn't miss any stage 3 nanners Stage 3 - yellow/tan withered open clusters of nanners - you'll see pollen whirl around in the air if you shake the plant a little (your grow is pollinated at this stage)