Can't really see it in the picture, but it could be a number of things, an ingrown hair, a cyst, a nodule, a pimple even. Have you showed it to your parents? That should be your next step, show it to them and let them decide if you need to see a Dr.
I wouldn't be too worried at this point. It could be anything. Have you had a problem with acne before? It could possibly be a clogged pore,or even the beginning of a "boil". I do think you need to get it checked,but try not to stress over it too much. If it does turn out to be something,if the doctor catches it early enough the cure rate is much higher than if you wait. So,my advice to you is,don't stress over it,but have it checked. You will put your mind at ease if you hear it's nothing (which I'm sure that will be the case),but in the unlikely event it is something,you can rest assured that it was probably caught early enough for you to be 100% ok. My prayers are with you. Keep us posted!