So I bought clear blue digital ovulation test and I took on the day my app told me I was Ovulating and it just came back with a circle not smiley face (means not ovulating) but when took test strip out it had 2 blue lines never thought anything of it took another test few days later and same again it’s now been a week and a few days and tested same thing happened again and keep getting these 2 blue lines does this mean anything??