i dont know if the Adex is necessary brother-the dose of test your running is pretty low. to answer your wuestion though, you do not have to cycle off. If you notice side effects from low levels of estrogen, such as achy joints, libido loss then just lower dose or stop altogether.
You should shoot Human Chorionic Gonadotropin (HCG) sub-q. its easier than an IM injection. basically just pinch some skin about 2 inches to either side of your belly button-put insulin needle at 45 degree angle-insert-aspirate and inject. If you google subcutaneous tissue-there will be diagrams popping up showing you its the layer between your skin and your muscle.