I am 15 years old and have had sex with and without protection about 5 days ago I noticed a pimple like object on the middle/left side of my penis skin. I popped it and pops like a pimple (white stuff, then blood) about 4 days ago. It came back this morning so I popped it again same process and a bump stayed what could this mean??
There are some pics (AFTER POPPED)

>Pictures Removed<

If you have had unprotected sex there is always a chance of STD's.

While pimples do happen it is best to check with your doctor to rule out anything more serious.