Pregnancy Boobs/Nipples? TMI PIC!!

So here's the problem: I've been noticing veins on my boobs and chest getting darker and more prominent since about the whole last week of March. My nipples were so sore leading up to when my predicted period was, so I figured all my new veins must be related to period boobs (something I've never experienced before). My "period" came a day early (nothing out of the ordinary for me), and the nipple pain went away, but my "period" only lasted 3 days (4 days shorter than normal for me) and was lighter than normal. Now I'm about a week away from my next period, and my nipples hurt bad again and the veins never went away, in fact I think they've gotten darker. Is there any way I could possibly be pregnant? I've also noticed more veins around my vagina and my cervix looks purple/blue (don't even ask how I got a look at my cervix all by myself). Do my boobs/nipples look like a pregnant woman's boobs/nipples?