A little bit of seed question

I've gotten a few nice looking seeds off of a mature female I just cut. Never noticed them on the plant. I've heard this sometime happens with mature females. The seeds look good; do you think I can use them without undue worry about hermaphrodites?

I think you should not have any worries. Its not uncommon for females to produce seeds, could be from not pulling a male early enough, or even stress can cause female plants to create seed.