Agreed...your natural test levels (provided that they are normal and you're "healthY") should still be pretty high, high enough for you to make great gains naturally.
Scrutinize your diet AND your workout routine first. If you're looking to grow and it's not happening, you're either not eating enough or not training enough (or hard enough). If you tweak these two important components, you WILL grow.
And a few years from now, after having done more research and after having asked ALOT more questions about A A S, don't resort to an anavar-only cycle. You'll be pretty disappointed.