Implantation bleeding

bridget 👼🏼 👶🏼👶🏼

Yesterday at what I think is 12 dpo (i didn’t confirm with opk) I had this bleeding I thought it was start of af but it usually comes down right away when I start to spot. I had sex and then I spotted and then it stopped today. I did although have cramps at 10 dpo. Tests keep coming back negative. Af according to app is due in 3 days.