Hermaphroditism is not "contagious" it is a genetic trait.
There is nothing in your pictures to indicate hermaphroditism or any sort of pollination.
Pollinated calyxes will not have white pistils like your plant.
Pic 2 just shows older, over ripe pre-flower calyxes with brown(ing) pistils, which is completely normal.
If you go to week 7 in my diary "cannabis conundrums" I have posted pictures of male and female pre-flowers and some types of hermaphrodite flowers and this may help you to identify any future issues, if there are any that is.....
Hope this helps, Organoman.