12dpo tomorrow and bfn

Megan

Hoping to get a BFP tomorrow. AF is due in two days and I feel like I have all these crazy pregnancy symptoms like swollen and tender breasts, mood swings, and fatigue are some. Usually before AF I'm pretty much just super fatigued and crampy. Hoping that these symptoms are a good sign and I get BFP and not AF. What's the most late you've recieved a BFP on a regular cycle?