Bleeding 2 days after ovulation..Help/Advice

Shenell
AF came on the 6th and Based on Glow and another app my Peak (ovulation) Day was the 18th so we BD every other day (Including the 18th) and now on the 20th I start bleeding with mild cramps..AF isn't due for 11 days. Is the Implantation bleeding (which I've never expienced) or AF coming again after get being here 14 days ago..What is going on?