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In-Depth

Pregnancy week by week

Healthy pregnancy

First trimester

Second trimester

  • Second trimester pregnancy: What to expect Second trimester pregnancy often brings welcome relief from nausea, breast tenderness and other pregnancy symptoms.
  • Prenatal care: Second-trimester visits Prenatal care can help ensure a healthy pregnancy. Here's an overview of second-trimester visits.
  • Fetal development: The second trimester Fetal development progresses rapidly in the second trimester. Check out the weekly changes.
  • Glucose challenge test Glucose challenge test — Overview covers definition, preparation, results of this gestational diabetes screening test.
  • Quad screen Quad screen — Overview covers definition, risks, results of this second trimester prenatal screening test.
  • Cordocentesis Cordocentesis — Overview covers definition, risks, results of this prenatal diagnostic test.
  • Amniocentesis Amniocentesis — Overview covers definition, risks, results of this prenatal test.

Third trimester

Pregnancy problems

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