As others have said, take another test with FMU. Urine is so easily diluted. If it helps, try not to drink anything 2 hours before bedtime and then take the test when you wake up.
wait a week and check again. you could of just gotten a false negitive so just wait another week when the hormones are there more and check again
One of the test results could be a false result, you may want to take another test make sure to use your first morning urine and not to read the results after 10 minutes because then you could get a false positive.
If you still have questions then you may want to call your practitioner and see what they recommend you do
Did you test first thing in the morning?