Why do blue veins show up on breasts and chest this month with other pregnant symptoms but have period bleeding just two days?

U may be pregnant: You can have a period / menstrual bleed and still be pregnant. The sign of pregnancy such veins on the chest and other pregnancy symptoms may be more reliable indicator. I would start with a pregnancy test and follow up with a doctor to sort it out.

Normal finding: I am amazed about how often I have women ask me about the veins on their breast. Occasionally they are spider veins but mostly they are blue veins. These are almost always normal findings and normal variations of chest veins. They tend to be more pronounced in fair skinned females and they may be related to hereditary factors or even pregnancies. No treatment is necessary unless for cosmetics.