Is an early sign of pregnancy sensitive nipples two weeks before your period and slightly raised blue veins around them where you have never had these symptoms before and breasts are slightly fuller?

yes that is a symptom, nipples do become sorer and veins more noticable, though this could mean many things gte a test to fid out for sure, if you ar pregnant you will strart to notice the areola around your nipple to become a darker colour, hope everthing turns ot right for you