A member asked:

I'm 4 days late. my period usually comes on time and i'm religious about taking my pill on time. i took 3 tests all negative. what's going on?

2 doctors weighed in across 2 answers

Many causes.: Weight loss, new exercise program, meds generic changes, severe stress... And occasional nl variation.

Answered 12/10/2013

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Period Late: I assume you had unprotected sex and are wondering if you might be pregnant? Although the pill is 99.9% effective, it can fail. It happened to my daughter - twice! of course, there are many other reasons for a late onset. A good home pregnancy test should become positive during the week after the missed period, so if you took 3 and take another negative test, you are not pregnant. See you gyn.

Answered 3/19/2013

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