Canadian Medical Guide > Biological Sciences > Reproductive and Urinary Physiology > Reproduction > Pregnancy Trimesters > Pregnancy Trimester, First Terms and Definitions

Pregnancy Trimester, First

Medical Definition:	Period of pregnancy from the first day of the last normal menstrual period through the completion of 14 weeks (98 days) of gestation.
Guide Notes:	human only; 14 weeks (98 days); avoid as IM: usually NIM coord; when IM, qualif permitted as for PREGNANCY; check tags HUMAN & FEMALE & PREGNANCY; DF: PREGN TRIMESTER FIRST
Previously Indexed:	Gestational Age (1968-1974),Pregnancy (1966-1974),Time Factors (1967-1974)

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