Well, everyone is different. Doing a test cycle at 30 years old may not bring on hair loss. That doesn't necessarily mean your safe from male pattern baldness. You gotta factor in too many variables to get a half assed answer. It would be like asking if I used this amount of gear and trained these different types of ways, would I be a pro bodybuilder in 5 or so years. Genetics play into all of that too.
Unfortunately there is no cookie cutter answers for what your asking. Some use compounds that are known to influence male pattern baldness with no symptoms at all while others can go bald on trt. You definitely can't get a good answer to your question being that your 30 years old and did one cycle of test. The best advice to give is if your concerned about hair loss, don't use gear.
Another analogy would be smokers. Some will go through 3 packs a day all their lives and die of old age. Others might get cancer from second hand smoke. Crystal ball type questions...