In response to Emma CarewâÄôs article on Plan B, here are the multiple ways Plan B works: It tries to prevent ovulation, or the release of an egg (ovum), but if a woman takes it after a surge in her luteinizing hormone then ovulation cannot be prevented, and an ovum is released. Plan B continues to try to thwart fertilization by thickening cervical mucus so sperm cannot fertilize the released ovum. If sperm gets through and fertilizes the ovum, which it sometimes does, then a human life âÄî with its own distinct set of DNA, 46 chromosomes and everything it needs to move itself through all stages of human development âÄî has begun. Plan B slows the embryo as it travels through the fallopian tube, attempting to destroy it and creating a potential for a tubal or ectopic pregnancy, which can be life-threatening to the mother. Plan B can fail to end pregnancy at this time, and if it does, it will roughen and weaken the uterus, making it unable to support the growing embryo that must attach to it. The embryo is killed. In response to Steve Cain and Kathi Di Nicola who support Plan B because it reduces unintended pregnancies, I suggest looking into the research of Anna Glasier and the statements of Kristen Moore, president and CEO of the Reproductive Health Technologies Project. Leona Jovanovich University student Ben McDonald University graduate student