This might be a stupid question. ..but I have 5 children, and all were planed, so I've been doing this for awhile. I have always counted my cycle days starting with the first day of my period. So, for me, counting this way, I would be in my 13 th cycle day. But I noticed that glow is counting this at my 8 th cycle day, which would mean it's counting it from the last day of my period.

I guess it doesn't necessarily matter. ...but I'm confused. They say you ovulate around cycle day 14, and that seems on track since I got my positive o test this morning. ...but if that's true then why is glow counting my cycle days by the last day of my period,