Breast question!!!

Okay so I have 2 questions...

#1 . If I'm pregnant I'll be 5 weeks. (Going to confirm with blood test) is it normal that my breath hurt last week up until a few days ago and now all of a sudden on a scale from 1-10 they hurt like a 2 (hardly hurt).?

#2. When my boobs first started to grow I always noticed veins in my left breast. Now I can actually see veins in my right breast!! I have NEVER EVER seen this before! And my left ones are more noticeable ! Is this a sign of pregnancy?!