Definitely female, plenty of pistils to be seen and no male flowers in the pictures you posted.
No need to panic, she is just a "late bloomer", something common in (weird) autos in general.
Week 7 in my diary "cannabis conundrums" contains pictures of male and female primordia (pre-flowers) if you are keen for reference material to help you identify what is going on with your plant, Also many other pictures of weird and wonderful things cannabis is capable of.
Cheers, Organoman.