Confused

Jodi

So my period ended August 2. My calendar showed I would start my fertile window here in a couple day with my ovulation day being around the 16th. I took a clear blue advance ovulation test and got a solid smiley face today. I’m so confused. Yesterday when I took the ovulation test the result was just a circle. So we decided today just to go ahead and start having sex every other day. And now it says today is my peak. Could my test be messed up?!?! Help. I’m ttc and I feel like my timeline is totally messed up.