I have missed my period, im 8 days late. my period is usually about 6 days long and my cycle is 29-35 days long. i track it with a app. i have had light spotting the last couple of days. i have taken multiple pregnancy test all negative. help!

Tests are accurate: Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, or medications. A correctly done urine test gives a reliable result 3 weeks after sex (3 weeks after when conception might have happened) or 1 week after missing a period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon.