Help please !

Katrina

I started spotting 3 days ago between light pink and brown. My nipples have been sore and my dreams have been crazy as all get out. My period isn’t supposed to come for another 6 days. I’m not sure if I took it too early or if infertility is in play. Ive been having small cramps and lower back pain as well as headache and nausea towards certain foods. Anything is helpful I genuinely would love feedback.