Implantation bleeding?

Amanda • Wife, Mother To An Angel Baby & Rainbow Baby Girls.

So AF was due yesterday, I started spotting last night, but has not progressed into anything heavy. It was light all night and all day today, a few hours ago the spotting stopped. And I’ve been having lower back pains. Couldn’t even finished dinner because I got nauseous outta nowhere. Also my nipples got dark. I want to wait a week to test again, but has anyone else experienced this, and became pregnant.?