Ovulating help needed !

Hello! I have been taking clearblue ovulation tests and have been receiving low circle symbols every day, but today got a flashing happy face. How long does this symbol and my high fertility last normally? My glow tells me I'm at 14% pregnancy chance rate, not my peak yet.  This is our first month tracking  ovulation with kits and I don't want to miss our window! I was expecting the normal smiley face first and not the flashing high peak one. Thank you ! Best baby wishes for all !