Starting the last week of your cycle or the next (whichever is most convenient), use 2,000 U of HCG, IM (you cannot do IM with an insulin needle, folks), three times weekly for the first three weeks of recovery. This will give your testes the much needed mass quickly. At the same time, you must use Nolvadex 20mg daily. Include Clomid 50mg daily if you are doing a prolonged, heavy cycle. Use the Nolvadex (and Clomid) for a total of six weeks and then reevaluate. If you are still shut down, you will need to repeat this six-week recovery cycle.
I am assuming that you have something to recover. Only way to know, for sure, is to do pre-cycle and post-cycle blood testing.