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References. Pregnancy category. The pregnancy category of a medication is an assessment of the risk of fetal injury due to the pharmaceutical, if it is used as directed by the mother during pregnancy. It does not include any risks conferred by pharmaceutical agents or their metabolites in breast milk .
- Category:Pregnancy in the United States
Subcategories. This category has only the following ...
- Teenage pregnancy in the United States
Teen births (aged 15–19) per 1,000 people by state ...
- Category:Maternity in the United States
Subcategories. This category has the following 8 ...
- Category:Pregnancy in the United States
In the United States and United Kingdom, 40% of pregnancies are unplanned, and between a quarter and half of those unplanned pregnancies were unwanted pregnancies. [164] [165] In the US, a woman's educational attainment and her marital status are correlated with childbearing: the percentage of women unmarried at the time of first birth drops with increasing educational level.
- 230,600 (2016)
- Missed periods, tender breasts, nausea and vomiting, hunger, frequent urination
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懷孕分級 （英語： Pregnancy category ）是 藥物學 中用來評估女性在 懷孕 期間服用藥物對胎兒可能造成傷害的危險程度，但是在母乳中出現藥物或是出現藥物代謝物所可能造成的傷害則不包括在懷孕分級中。 每一種藥物都會在產品說明書中註明懷孕分級資訊，在英國，當某種藥物沒有設定分類時，則參考 英國國家處方集 （英語：British National Formulary） 所提供的懷孕藥物列表，該表列出懷孕時應避免服用或是應小心使用的藥物 [1] 。 美國 [ 編輯] 1979年， 美國食品藥物管理局 （U.S. FDA）根據瑞典在1978年開始使用的藥物分類系統，發展出相似的針對藥物造成胎兒危害的分類系統，該系統對於懷孕分級做了以下定義 [2] ：
Pathology of pregnancy, childbirth and the puerperium (7 C, 56 P) Pregnancy in popular culture (5 C, 3 P) Precocious puberty and pregnancy (5 P) Pregnancy in the United States (1 C, 6 P)
