Has anyone ever got wrong ovulation date from OPK. I believed to have gotten a positive on Nov 25 from test glow did have my the 25 as the start of my fertile window but not ovulation day. So with me putting Nov 25 I got a positive OPK it changed the results of my calendar. Saying my period should start tomorrow but today I wiped and got a lil spotting which NEVER happens. When my period starts it is a full on period. Nice flow & bright red color causing me to use pad or tampon right away. I'm so confused cuz this is reminding me of implantation bleeding it just like spotting and a light pink color. But when I took test today I got bfn. I don't wanna be too dramatic and get ahead of my self.