yeah coulda turned hemi,(not pollenated unless you had a male plant in with it)when they pollenate thierselfs they only have the female gene to make the seed

also my friend tells me when he lets them flower longer he gets a few seeds at times without seeing any male flowers on them at all

dont think you got to worry bout alot of seeds just plant them theyll either be female or hemi


good luck, nice first grow btw