Ovulation bleeding or implantation bleeding?

Rebecca

So I was ovulating the 26-1. My SO and I had sex on the 15 of December and didn’t pull out.. I started cramping and spotting on the 30 and today is the 2nd and I’m still spotting.. I’ve been having nausea, cravings, headaches, and very emotional.. I’m not due to get my period until the 14th.. has anyone had spotting while ovulating? I haven’t tested yet.. should I wait to see if I’m late or should I test now?