CALCIUM is the key if she is gravid. but again, 5 months is just a little too young to be laying eggs. at least i've never heard of them laying eggs that young. ive got a 6 months old and not a sign of gestation yet. my gf's cham is gravid however, and i'm going to strongly disagree with chameleonneeds. she reduced her diet and that messed the whole cycle up, she wasnt getting the proper nuritment, calcium intake, hydration. she is still very healthy might i add, but has been gravid because of this for 3 months or so. we just took her to the vet, and because of this she was slightly calcium difficient ( we caught beginning signs of MBD) and miraculously she isnt egg bound. so we are just being patient and giving her a perfect (homemade) gut load for the crickets, and supplimenting calcium a little bit more (chamelons use alot of calcium in egg creating) i may state, that if you have the time a drop of liquid calcium in the mouth once a day would be more sufficient, being as powder is a little hard to digest and the liquid goes right through them. powder is not bad at all though, just what i stated. and the D3 is very important. a LIGHT dust every or everyother feeding of calcium D3 would do the trick. NO light fixture is sufficient enough, they need that D3. i hope i could help you out, and dont be afraid to message me with any other questions if you'd like

i've got a neat little gut load trick for you

*whispers* chameleons need fat-soluable for their diet, not all chameleons are old enough for all the fatty bugs.
have a good one, chiao