12dpo, AF due today. BFN

Hayley

I ovulate on CD 15 every month and my cycle is always 26 days. Today is CD 27, AF should be due. I’m having some cramping here and there but still not feeling anywhere close to my usual pms signs. I have been getting BFNs for the last several days. Is it likely that at 12dpo I would still be getting such harsh negatives if I’m pregnant?