It can be very difficult to find a doctor that's willing to work with you.
First off, I recommend reading the stickies. You can find them at the top of the topic list (the 6 topics with a yellow note next to them. This one may be particularly relevant for you: http://tnation.T-Nation.com/free_online_forum/sports_training_performance_bodybuilding_trt/finding_a_trt_doc
If you'd like any more help beyond finding a doc, we'd be glad to give you some advice. For starters, pretty much all of us are going to recommend taking injections twice a week (at your dosage, that would be 50mg twice a week, e.g. Sunday and Wednesday); one injection every other week overloads your body with testosterone which then converts to estrogen, and it doesn't give you a steady dose of testosterone - you're going to peak on day 2 or so, and by day 9 you're probably crashing hard.
Could you post your labs? It would be useful to see what your case is like so that we can get a better idea of what might be causing your low testosterone. We'd need the lab result, the units of measurement (e.g. pg/mlL) for each result, and the lab range that should be provided with the lab result.