URMC / Encyclopedia / Content Search Encyclopedia Topic Index - Pregnancy and Childbirth Pregnancy & Childbirth Home Planning a Pregnancy Signs of Pregnancy / The Pregnancy Test Calculating a Due Date Prenatal Medical Care Pregnancy Pregnancy Overview Anatomy: Fetus in Utero The First Trimester (0 - 12 Weeks) The Second Trimester (12 - 24 Weeks) The Third Trimester (24 - 40 Weeks) The Pregnant Mother Hormones During Pregnancy Weight Gain During Pregnancy Nutrition During Pregnancy Exercise During Pregnancy Work and Pregnancy Sex During Pregnancy Sleeping During Pregnancy Multiple Pregnancy Overview of Multiple Pregnancy Symptoms and Diagnosis of Multiple Pregnancy Complications of Multiple Pregnancy Care and Management of Multiple Pregnancy Newborn Multiples Common Discomforts of Pregnancy Common Tests During Pregnancy Risks to Pregnancy Alcohol and Pregnancy Smoking and Pregnancy Illegal Drug Use and Pregnancy Medications and Pregnancy Medical Conditions and Pregnancy Warning Signs During Pregnancy Complications of Pregnancy Labor and Delivery Labor Delivery Care of the Baby in the Delivery Room Postpartum Care Caring for the Mother: Physically and Emotionally Breastfeeding Your Baby Breast Milk is the Best Milk Getting Started How Milk is Made Effective Breastfeeding Effective Sucking Breastfeeding Difficulties - Mother Sore Nipples Insufficient or Delayed Milk Production Low Milk Production Flat or Inverted Nipples Plugged Milk Ducts Mastitis Breastfeeding Difficulties - Baby Ineffective Latch-On or Sucking Slow or Poor Infant Weight Gain Mismanaged Breastfeeding Over-Active Let-Down Bottle-Feeding