Dark vaginal veins?

So my hair on my legs and lower extremities grows at a very slow pace during this pregnancy. I was shaving "down there" and noticed a have what looks like one dark vein about half inch long on my left labia (majora). I investigated down there and noticed the whole area is darker (which I knew it would be since this is pregnancy number 2), but there are some very dark veins in the minora too. I'm guessing just varicose veins from the pregnancy, but does anyone else have experience with these?