Implantation? Or ovulation

Hello ladies. I'm at 6 DPO today. Early this morning me and my husband babydanced and I went to clean up and saw a little bit of blood. Could it be implantation? Or ovulation? When I woke up this morning I felt a little nauseous and my back was hurting last night and this morning. I'm assuming I'm 6 DPO because of glow.