Hi, I believe that life begins at conception, so I am looking for a birth control option that does not prevent a fertilized egg from attaching to the uterus wall. Many of the options I ve researched have a primary function of preventing ovulation, but then a secondary measure of thinning the uterus lining so that if fertilization occurs the baby will pass, unable to attach. I m hoping there is something that either prevents ovulation 100% of the time or does not thin the lining of the uterus so that if fertilization does occur, the baby will survive. Does anything like this exist? What are my options?