Is she going hermaphrodite on me and should I harvest?

Looking at your trichomes turning white and the week 13 timing, you're definitely in the harvest window! Those white trichomes indicate peak THC. If you're seeing some hermaphrodite traits with pistils changing, it's actually the plant's natural response to stress near end of life - not unusual at week 13. I'd recommend harvesting now if you want a more energetic effect, or wait 3-5 more days if you prefer a heavier, more relaxing high (when more trichomes turn amber). Just keep checking those trichs daily! Good luck with your harvest! 🌱