False negative pregnancy tests are common
If you suspect your might be pregnant and your pregnancy test is negative don't give up just yet. It is very common to have a false positive. If your urine was too diluted or if you tests too early you could have a false negative. If your period is still late you should retest every couple of days. If you keep getting negatives and your period doesn't arrive after a week or more you should call your doctor for a blood test.