Most HPTs work with 99% accuracy OF THEY ARE USED CORRECTLY. Your friend may have used them too early in her pregnancy or not used an early moring urine. If she WAS using them correctly perhaps she just came across a bad batch.
Yes, pregnancy tests can give many false negatives. Try taking your pregnancy test in the morning with the first urine of the day. At that time hormones are more concentrated and will show up on the...
Did you read the positive hpt within the test time limit (usually no more than 10 minutes after taking the test)? It could have been an evaporation line if you read the test after 10 min. If that...
i would say u most defo are pregnant .im 10 days late today and up until yesterday had done 7 hpt.they were all negative.then yesterday i done 3 more.all positeve!!!teh line was so faint i could...