14 DPO and negative test

Kat

So today I'm 14 DPO. I had what I think is implantation bleeding 10 DPO. Hardly anything there. Then the day before my period I had the same thing but I thought its the start of my period coming. But since then 2 days later still no AF and I've took a test and it's negative. How long do I wait again to test? I'm always regular with my cycles and always have either a 4-5 day period so I'm just really confused.