Rate of puberty question

I'm an extremely late bloomer.

I'm 14, and I've never ejaculated. I masturbate at least twice a day.

Basically, I've got hair a little hair in the areas, I have to take daily showers unlike pre-pubescent kids in order to not smell, and I've got acne.
But I'm extremely short, 5'1, and my dick is the size as we all had close to when we were like 7 - 10ish. So basically I have the penis of someone who hasn't progressed in puberty at all. For someone my age, that's tiny obviously. (Varying size flaccid, 2 inches erect, not even going to take the time to measure girth.)

I'm going into high-school this August, and I don't intend to be a virgin by the time I'm 16, and I won't be if this issue resolves itself. (I don't need criticism, not needed here.)

My question is when I will be sexually developed, with a penis that's actually normal size like everyone else's. By this, I just mean good size for sex, e.g 5 inches with girth not being THAT important. When the onset of the penis growth comes (roughly when will that be?) how fast will it happen?

I'm really concerned. :S