If a woman is in denial of pregnancy and she takes a test bought in a pharmacy, can the result be affected (false negative)?

Good evening ma'am,

The fact that the woman nor be pregnant will not change the validity of the test, no.

The test only measures the pregnancy hormone content of the urine. This test can be falsely negative if performed too soon after conception, but will end up being positive if retested later in the pregnancy.

Good evening,

Alexandre Chagnon, pharmacist