Help IB or AF

Ma
Hi, 
I'm not trying to hope anything anymore, but did anyone got the same thing on glow ? 
I got what could be AF today but it is 4 days early, I've been late before but never early ! 
Got period on sept 24th BD on the 28th only ( sorry tmi ) only time he came inside. 
 I had cramps and twinges since, around O time, I felt like I peed myself, it was super watery. 
Couple days later lot of creamy lotion CM, then dry for 2 days then yesterday lot of lotion CM again. 
Being cramping the whole time. I have been having hot flashes as well. 
Anyway, when I look on the glow calendar the dates seems off to me or I would have got even bigger chance of conceiving at the time we BD. 
I don't really understand. Did it happen to anyone ? Did it end up Bfp or AF? 
Thank you for the help !