A member asked:

How accurate are ept's? girlfriend has tested negative on 4 tests but still late by 8 days. if she isn't pregnant what's causing the missed period???

A doctor has provided 1 answer
Dr. Betsy Greenleaf answered

Specializes in Gynecology

Many things: There are many factors that can throw off a women's cycle. Also pregnancy test accuracy can differ. Try a different brand. If negative wait a week and re-try test. Unfortunately, stress can throw off a period too..

Answered 5/13/2015

2.8k views

Thank

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