I can not help you with the age of your Leos but you did say a male and female. I just wanted to let you know, in case you were not aware that it is not recommended to keep a single male in the same enclosure as a single female.
He will mate with her whether or not she is physically ready and it can lead to many problems.
Here are a few of the issues that may arise - it can shorten her life span, in fact in some cases kill her as producing eggs when to young or underweight can cause severe deficiencies, as well it can cause major stress to the female, it can cause her to loose weight, it can cause the eggs to have improper shells due to lack of calcium and her to have MBD, it can lead to egg binding, etc.
I just took on a male, female pair that used to be housed together and the female was having many of the issues I mentioned above. I have since separated them and she now has finally put on some weight, she is far less stressed, calmer allows herself to be picked up, not roaming the tank all day long when she should be resting, she is gaining tail fat, as well not a single one of the 10 eggs she had laid this past breeding season were viable, nor did any of them have enough calcium for the shells to not collapse with in a few hours of being laid, as well the male was the more dominant personality and would not share the heat spot with her so she was not getting the heat she needed for thermoregulation and digestion, now she has all the heat she wants and finally she was also having shedding problems, likely due to the other stresses and those have been almost completely resolved (only one foot left to shed properly).
Feel free to do your own research, but I just wanted to give you heads up to potential problems.