Nova Scotia Health Authority. Nova Scotia Women's Choice Clinic.
Nova Scotia Health Authority
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Birth control pills work to prevent pregnancy by stopping you from ovulating, thickening the mucus made by your cervix, and changing the lining of your uterus. This pamphlet explains how well the pill works, when it starts working, pros and cons, how to take it, what can change how well it works, instructions for missed pills, and possible side effects (as well as serious ones to be aware of). The pill is not prescribed to women over 35 who smoke due to the risks involved. The pill will not pro…