I've just had a shower, back at work today after half term off so feeling pretty whacked. One of those "can't wait to get this bra off" moments. I was totally shocked to see a roadmap of blue veins all over my breasts Is this a period due sign or pregnancy sign? Period due in 6 days. I have to say that I've not noticed it before when my period is due and can't remember when having my son (he is 5 years old now). I told myself I wouldn't symptom spot, but this is a new and very obvious... Anyone else had this?