I have nipple pain while breastfeeding, but only on the left side. Now, I have a pinkish spot rash that is mainly over my chest. The rash is not itchy or raised. I have had breast rumors in the past that were non cancerous. I period is also late, by over a week. I am not pregnant, I ve take three home test but all have been negative. In the past weeks I have had spotting, but with very small amounts of blood, not sure if that is related to anything.