Clear blue advance

Er

Can your ovulation predictor give you a positive for pregnancy?

I already reached my peak on the monitor and I don’t plan on using it again as it was expensive so I thought what the hell I’ll use the rest of the sticks up so I started testing 48hrs after the peak smile was gone and got the flashy smile face two days in a row....so it’s just weird I guess if I’ve already had my peak why would it be picking up high fertility again......