opinions please

Kanita • 07-05-16 💍 Married my best friend this day he's the love of my life and a wonderful step father to my son💕 My son and husband are my world my everything...

so about week and half ago one of my nipples started hurting and I was cramping for almost a week then yesterday I started my period I'm normally on the heavy side for periods yesterday it was heavy and now it's very light.. I'm nit sure what it is I'm only 22 years old...