But if you've been going through fertility treatment, like IVF for example, and you are given fertility medication, this can ...

Pop princess Katy Perry has revealed the unique place she keeps her positive pregnancy test. The test was the one that first told her she was pregnant with her now 4-year-old daughter, Daisy Dove.

It can cause a false positive result or a faint line on a pregnancy test because the brief pregnancy produces a small amount of hCG in your body. You made a mistake in taking the test.