I lift weights two times per week. The day after I work out, not only do my muscles hurt, but so do my bones. It is not unusual for a teenaged weight trainer to experience bone pain. When you are still growing, the muscle and tendon sheaths are not fully developed where they attach to the bone.
Excessive strain can cause bone pain and tendon inflammation.
The pain may be worse during growth spurts, when muscles and tendons are stretching to fit the lengthening bones. The additional stress from your exercise may be counterproductive. It is not a good idea to continue straining the tendon-bone junction to the extent of causing bone pain. You may be selling yourself up for some chronic tendinitis. Take two or three days off, or exercise very lightly, if you think you might be going through a growth spurt.