Are There Any Birth Control Pills that Don't Have the Potential of Causing an Abortion? article - Randy Alcorn Combination pills contain both estrogen and progestins.
Alternative Methods of Birth Control article - Eternal Perspective Ministries Here are some sites you might want to visit for alternative birth control methods.
American Society of Reproductive Medicine Statement Confirms the Pill Causes Abortion article - Ellen M. Rice Amidst an ongoing debate among prolife advocates about whether to classify the Pill as an abortifacient or a prophylactic, pro-abortion advocates have published an authoritative statement declaring that the Pill prevents implantation of embryos, thereby causing an abortion.