Nipple piercing problem

Kyra
Hey everyone I just have a question! I got my nipples pierced 7 months ago and I've never had an issue with them up until now. For about two weeks I've noticed they are very sensitive to the touch, they are swollen and I'm having some white crusties around the balls of my piercings. Is it infected or what? Side note I am currently nearing that time of the month so could it be my period?