Help! Implantation or early period

Mais

Had sex over my fertile week..

I've had sore boobs and fatigue for a few days... woke up to stomach cramps this morning with a hint of pinkish blood when I wiped. I now have pinchy cramps in my lower stomach.. ive also got thrush so not sure if this is to do with the bleeding

Could this be an early period or implantation?