absolutely 100% that is a male pk.. they are very good at hiding as females. they do very often show "breeding bars" and a "flase ovipositor", especialy when young. its very frustrating.. there seems to be a huge shortage of females in pet stores at the moment, the vast vast vast majority of females ive sen in the last few months have been pk males.
my most local place has been trying to breed them for ages, and asking me for advice, and so far every "female" she has used has been a pk male, even though they show every other sign of being female