Improving fertility for pregnancy starts several months before conception. Key steps include maintaining a healthy, balanced diet, taking a daily prenatal vitamin with folic acid, engaging in regular physical activity, and avoiding harmful lifestyle habits. Tracking menstrual cycles and identifying ovulation can help optimize the timing of intercourse, while women with irregular cycles may benefit from evaluation and treatment by a fertility specialist. Addressing medical conditions and potential fertility concerns before pregnancy can improve both the chances of conception and overall pregnancy outcomes.