Implantation Bleeding and a BFN!

La

Hi all - I have implantation bleeding (I think) light brown and then super dark brown spotting at 7DPO-10DPO. I have headaches, nausea, tingling pinching and aching feeling in my lower left pelvic area and slightly sore boobs. I’m 12DPO today and got a BFN! ... AF is due in 3 days. Do I have any hope? Have been off pill for 9months and TTC for 4-5months ...