Stages of Pregnancy Slideshow Early Pregnancy Symptoms Slideshow Pictures Conception (Egg to Embryo) Slideshow Pictures Teratogenic: Able to disturb the growth and development of an embryo or fetus. See also: Teratogen and Teratogenic drugs. From Women's Health Resources Dental Care During Pregnancy Featured Centers When Prostate Cancer SpreadsEssential Tips to Manage DiabetesWhat Is Cystic Fibrosis? What Causes It? Health Solutions From Our Sponsors Kept Your Wisdom Teeth? What is TAVR?