Opk experts???

I’m using the clear blue digital ovulation test. It’s the regular one that only does the solid smiley so no flashing. I got my first solid yesterday, which was earlier than I was expecting. I was suppose to ovulate on the 31st. I know the instructions say that once you get a smiley you don’t need to test anymore, well I tested again today and got another smiley. Does that mean that tomorrow will for sure be the day I ovulate?