Are dark blue veins on your breasts a sign of pregnancy?

If you know you are pregnant and have dark blue veins that is quite normal.

If that is the only sign you have, you may not be pregnant as it is just a sign of increased blood flow, this could be for many reasons.

I don't know how old this is but that isn't true. Having blue veins was my first sign of being pregnant with my first two kids. That was my positive test for me. So take a test and see what you get. Good luck and KUP.