what you would have to do is hermi the plant and use the pollen the hermi produces to pollenate another female plant, the resulting seeds should be female, not sure on is this is correct info just what i have heard, also not even sure if this is what you want to know hahaha
see for a second that made sense, but then if you were able to hermie the plant in the first place, that means hermie is in its genes, and no matter what you will still have a percentage chance of hermies.
In fact it is the female hermie pollen they use to make feminized seeds. As long as the resulting germinated seeds don't know stress, they won't hermie. even then, it depends on when they get stressed. So now that we have that out of the way, I know if I hermie it now, I will get seeds. I know they would be feminized seeds, not to concerned with that because I do 12/12 from seed which gives you a higher % of females anyways, but whatever. 
yessir I did not say otherwise, with genes its all about percentage and chance, if your plant shows hermie traits its more likely to produce hermie prone seeds. I dont buy feminized or autos for that matter.†LHAO† I love all ya'll for replying, thanks for that, BUT ALL MJ STRAINS HAVE THE HERMIE GENE. All of them, even what your growing right now
Here's the real question I have: If I do it now, what are the chances the seeds would be matured enough to grow? I don't have to worry about anything else getting pollinated, I slaughtered everything but it and one sativa dominant bubblegum pheno, and I wouldn't mind if that one got impregenated by the indica dominant, hell, I'd prefer it.
Note, regardless, like I said, thank you for replying, don't have a mouse right now (don't ask, have a 3 yrd old daughter....) will have one prob this thursday, at which time I'll give you all rep..
they need a mad scientist smiley... †nods in self-confirmation†
no they don't
nope, hermies do not produce female seeds.All of them, even what your growing right now
if it's a hermaphrodite you will get male, female and hermaphroditic seeds. And 12/12 from see does not give higher % of females. The sex is in the plant from conception.
depending on how long it takes to get some female self pollinating flowers out you may or may not have time for this grow. You may have to save the pollen for the next grow.