My baby sav is around the same age, and is going about every 3 days. He is also eating more though. He is eating 15ish medium crickets a day and some turkey/bone meal mix every 3 days. Something you might wanna do is get a red night bulb to keep the enclosure 80*+ 24 hours a day. I know some people dont, but the research ive done from the people that know what they are talking about say 80*+ at all times is the way to keep a healthy monitor