I agree with the others. Test has to be the base of every cycle. You will cause a lot of damage and shut down. Below is a good read I resort to and share with novice users in such a cycle as this. This post is due to DocHoliday off AR. He gets the credit.
Hypothalamic-Pituitary-Testicular Axis (HPTA):
Secondly you must understand the Hypothalamic-Pituitary-Testicular Axis and the affect Anabolic Androgenic steroids has on your HPTA. The use of AAS has a negative affect on your HPTA, which Ill put in simple terms. For a detailed explanation see the following link:
http://www.xtrememass.com/forum/showthread.php?t=407
The body is always looking to establish homeostasis, a balance in the body. Upon the introduction of AAS to the body, you begin to reduce your own production. Some AAS compounds are harsher to your HPTA and shut your natural production down hard. A rebound from this shutdown is taxing on the body upon discontinuing use of AAS. Other compounds must be used to help the body return to homeostasis.
The compounds that are harsh on your HPTA will also be harsh on your libido; your sexual drive, and for men can result in a limp penis.
Such compounds that are harsh on the HPTA are:
Trenbolone (fina)
Deca-Durabolin
It is therefore, advisable for at least the sakes of sex, to keep Testosterone as a base for any AAS cycle.
Testosterone as a base:
There are limits to the length of cycle use. When you being AAS use, it takes time for the body to swap its natural testosterone with the synthetic compound. The times vary with the particular ester used. However a short AAS cycle will most likely only result in a shut down of HPTA and not leave the body exposed to the synthetic testosterone long enough for positive gains. Too long of a cycle, and your suppressed HPTA will have a harder time recovering.
Further, the body can develop more or less immunities to AAS on cycles ran too long and cycles ran at too high of a dose.
Secondly, the body has limits for how much it can grow. A longer, higher dosed cycle will not be more effective simply because of the bodys tolerance and limited ability to grow.
My own guideline for a first and second time user is any cycle ran less than 8 weeks is too short; any cycle ran longer than 15 weeks is excessive. 10-14 weeks is a good range for a first and second time user.