I know next to nothing about steroids, proper amounts to take and all that, but even I know that what you've provided isn't enough information.
Let me show you why, you wrote:
Test-E for 15 weeks... How much? *ALL the Test-E on the planet? Are we talking ONE shot at the beginning of the 15 weeks? Two shots a week? Once a month? 750mg a week? 3 pounds? An IV of Test E to cart around with you everywhere? Any anti-E plans? How about PCT? Do you plan on getting your junk back up to speed or do you want to hope that in a few months your boys will come back from 'unemployment' (as it were).
All these questions about your 'cycle' and I don't know squat about steroids. Consider that and do some research on the subject before messing with your endocrine system.