12 DPO ! According to my other 3 apps I’m 1 day Late

I’ve been getting the same Symptoms I get Every month When my Af is about Arrive But Hasn’t Showed Up ! now I’m feeling Sick my throat is Sore & I keep having Headaches off & On is this A Sign 😩👀 I’m hoping I get a BFP Soon ‼️ also I have a Copy Of My Other Calendar what’s my Chance of conceiving