How long do I have???

So I started the plants on their 12/12 about 13 days ago. For the most part they are all sexed but they're are a couple plants that I think have pollen sacs on them but not 100% sure. I've got them marked out and set aside, inspecting them each watering. There we're 2 plants for sure that we're like all female except 1 cluster of pollen sacks. I pulled the sacs and put the plants back under the lights, hope I'm not screwing myself here. I'm wondering how long into the 12/12 cycle do the pollen sacks burst and start spreading? Thanks guys.

I have a low budget camera that doesn't take good close up photo's or I'd be posting pics to go with this thread.

Well any plant with a cluster of pollen sacks is not female...so no need to put it back under the lights...and it usually takes around 2 or 3 weeks of 12/12 for them to start spreading pollen...or rather a week or 2 after they show male parts those male parts will start to drop pollen...

Why would the plant have buds starting everywhere except in one place where there is pollen sacs if it was male?