I'm 16 years old. On march 8th 2013 I had sex with my clothing on. I was on my period during that. On April 6th of this month I got my period, so i don't THINK i'm pregnant. More recently I had sex during my period on the 8th of March. I was on my period this time too and we didn't use protection and he came inside me. Now it's the 13th. I visited my gynecoloist and I don't have any uti's diseases or homonal imblanaces. I didn't tell her I had sex, though.  I ended my period 3-4 days ago so my breast changes aren't due to my period in any way, this is all new . My breasts get shooting pains in them every now and then, espeically in the nipple area. My areolas are darkened, and larger. There is a vein-like ring around one breast. Any ideas on what it could be? It all happened shortly after the sex with clothing on, but I know it's not possible to get pregnant that way, so I don't know...