Looks to be a female, but I'm not too sure on this one, since it's a juvenile.
The photo on the top right looks more male, notice the blue spots on the gill.
Most male dovii really start showing color even at 3 inches, perhaps IF this dovii was male it could be a late bloomer !
Increase your amount of WC and feed that sucker some good quality cichlid pellets, make another thread in a month.