Fertility Astrology, Electional Astrology, and Pregnancy Cycles. This archival document is a chapter manuscript titled “CONCEPTION and FERTILITY ELECTIONS” by Marion D. March. March synthesizes over twenty years of practice working with fertility cycles based on Dr. Eugen Jonas’s solar-lunar distance model. She cautions against using fertility cycles for birth control due to biological variables. March outlines electional rules for selecting optimal conception dates, interpreting Moon aspects, and integrating modern assisted reproductive technologies—such as artificial insemination and in-vitro fertilization (IVF). The text features detailed case studies and technical chart worksheets for clients (e.g., Mindy, Marissa, Sarah, and Jennifer) to illustrate how timing embryo implantations and fertility windows can support successful pregnancies.