My next period is supposed to be in 9 days

I ovulated a little over a week ago

When I wiped earlier there was a tiny bit of spotting on the tissue, I'm also having cramping and sore boobs

I'm not on birth control, but we're also not currently trying for a baby, so using the pull out method.

I had implantation bleeding with my daughter, but I don't remember much about it

Does this sound more like implantation or early period?