yeah, right now you are vegging your plant. if you want to flower her you will need to switch to 12/12. about 1 week into flower your plant will show its sex.
the good news is, you're getting alternating nodes, which means this plant is fully mature and ready to flower. a week or so at 12/12 and it will definitely be showing its sex
the bad news is, i think i see male preflowers--i could be wrong though, i hope i am!