How big is the Jag? I dont think you can accurately sex that jag due to its size but from the looks of it i say female. But then agin cant be positive with that juvi. It seems to have a slight jaw deformality from the pick i have seen this in a lot of juvinile jags, does it stay like that into adult hood?
Just by that pic, I would say you have a little male there!
Females tend to have more defined black markings on the side, the males more mottled and they totally disappear in adult hood(become spots)
Do you have any other pics??
deffinitely not full of eggs just a bunch of guppies i had in the tank i had about 100 or so (i tried to get my daughter to count them ) in the tank when i put the jag and jd in there and that pic was about 4 hrs after and a bunch of baby guppies later