Help! I really hope this is my month!

Future Hubby and I Have been active in sex life everyday this month except day of ovulation ( but sex week before, during fertile window and day before ovulation ).

I've been having light, uncomfortable cramps since 1DPO. I'm 5DPO now but I'm curious.

If I don't have implantation bleeding, does that mean I'm completely out of the run for this month? Has anyone not have implantation bleeding but got a BFP? I just want to remain hopeful as this will hopefully be my rainbow 😔.