My period is always a normal period this month i am 14 days late.. i took a test at 8 days late said negative took one at 13 days late said negative does this mean im not preg or should i check again and if not what could it be or why is it late ?

Re-test, if worried: It can be hard to tell if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A urine pregnancy test gives a reliable result by 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing a period. An Ob-Gyn doctor can evaluate any persistent or worrisome symptoms.