the pregnancy test is quite sensitive meaning it will pick up over 99% of true pregnancies. it would be unusual for you to be pregnant after having taken 3 pregnancy tests. have you missed your period? if so the pregnancy test should be positive. if you continue to have the symptoms you should repeat the test in several weeks. the other part is have you had unprotected intercourse since your last menstrual period? if so then you may have to wait a little more time before finding out. .
could i be pregnant even if the three pregnancy tests i have taken have come out negative?