Pediatric Health Library
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Pediatric Health Library Topics
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Weight Gain During Pregnancy
Weight gain during pregnancy varies from woman-to-woman and depends on body type and severity of nausea and vomiting. Average weight gain for women is between 25 to 35 pounds, although slight deviations from this may also be considered normal.
Total weight gain at the end of pregnancy is, in most instances, approximated as follows, according to the March of Dimes:
| baby | 7.5 pounds |
| maternal energy stores (fat, protein, and other nutrients) |
7 pounds |
| fluid volume | 4 pounds |
| breast enlargement | 2 pounds |
| uterus | 2 pounds |
| amniotic fluid | 2 pounds |
| placenta | 1.5 pounds |
Average weight gain per trimester:
| first trimester | 3 to 4 pounds |
| second trimester | 12 to 14 pounds |
| third trimester | 8 to 10 pounds |
Click here to view the
Online Resources of Pregnancy & Childbirth
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It is important to remember the health information found on this website is for reference only not intended to replace the advice and guidance of your healthcare provider.
Always seek the advice of your physician with any questions you may have regarding a medical condition. If you think you may have a medical emergency, call your physician or 911 immediately.
Children's Hospital of Orange County | 
University of California, IrvineChildren's Hospital of Orange County is affiliated with UC Irvine Healthcare and UC Irvine School of Medicine
