Published in Women's Health Weekly, March 16th, 1998
While both contraceptives are thought to work by inhibiting ovulation and by changing cervical mucus to prohibit sperm penetration, these studies focused only on cervical mucus changes. From approximately the ninth day of the menstrual cycle until just before ovulation, cervical mucus is thin and watery and penetrable by sperm. After ovulation, serum progestin levels increase and the mucus becomes thick and opaque and impenetrable...
Want to see the full article?
Welcome to NewsRx!
Learn more about a six-week, no-risk free trial of Women's Health Weekly