In about a month or so your voice may start cracking a bit and you'll sound like a teenage boy :p. You'll also start seeing hairs sprout in areas that don't normally have hair like your face and upper thighs. I guess it all really depends on your genes. My best friend has been on T for 2 years and his stomach has a lot of dark long hairs. He doesn't get much on his face and he still doesn't pass as male (sometimes he does) his voice is also still on a feminine level but a bit deeper than what it was.
I've been on T 2 years also and I have very light hairs on my stomach, my thighs have gotten darker hairs and my face has a bit of dark hairs. I don't shave because I want it all to just grow out and see what I get, my voice is definitely masculine compared to what it was a while ago. I've also gained A LOT of weight and have a bit of a beer belly.
He takes his shots in the stomach (subcutaneous, once a week)
I take mine in my thigh (intramuscular, every other week)