Implantation bleeding

Ash
Did everyone who had there BFP have implantation bleeding?! I'm 9 dpo with fermara and ovidrel shot and can't test until day 16 but I am having cramps but no implantation bleeding. Does everyone get that or just some?! I am afraid it's AF coming and not me being pregnant :( I've been trying for almost year and a half and getting to feel hopeless.