Okay sooo today I noticed some black specks on my nipples, and I am very confused and alittle worried....

I cant really find a picture of what I'm dealing with...but it looks like pepper...I dont think it's from pregnancy because the deed only took place 7 days ago... I dont know maybe it could be... or maybe it's a hormonal thing and I've never noticed it and maybe I get this before I start my period I dont know has anyone else ever experienced this before???