My experience has taught me to relax a little and not panic. First, I've never had a male plant drop pollen in my garden. You're not likely to see any flowers for at least 10 days and then you should have a week to confirm sex if you're not sure at first.

As to how many seeds? It could be any number depending on amount of pollen released.

I've had the occasional hermie where I missed a couple of pollen sacks and only resulted in about 30 seeds, no big deal.