Implantation spotting? Or early 3 day early period? Help!

Hannah • I love Jesus and my sweet family!
I had a negative test today, then started heavy spotting and cramping and just figured my period was coming early. But it just suddenly stopped and wasn't the normal color/consistensy (sorry) it's the 13th and my period is due the 16th. Could I still get a BFP? I never had implantation bleeding with my first and my cycle is so regular! Never early.