@Crystal when did you get your first positive? Did you find the afternoon tests stronger than the morning ones?
This can be an expensive exercise and your urine gets more dilute throughout the day, which may Bub turn yield false or inconsistent results. What day post ovulation are you and what brand of test are you using? They usually suggest to test with the first morning urine/same time everyday and the same brand for accuracy.
I did and my test would ger darker but my hcg was rising quickly bc of me being pregnant with twins both times