Oh god yes! I've always had visible veins in my legs but faaaaar out. I have veins in places I've never seen before
They'll go back down after the baby. Your blood volume is increasing to help support the baby so your veins are expanding to compensate. Mine have shown up big on my shoulders, breasts, and thighs. :P
In my breasts, yes. They're huge!
Definitely see them in my breast after I shower...