I did get some on the 16th (unprotected and he didnt pull out), which was O day according to this app and many other calculators.. today I'm feeling just a bit off. Like a burp I can't get up, pain that feels like I'm starving but im not even interested in eating, and a bit of super light spotting.. did AF decide to come early to spend Xmas with me, or ... ?? Seems too early to be either one.