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pregnancy

The time during which an embryo, then a fetus, develops inside the uterus, from conception to birth.

PREG-nun-see noun

What it means

A full-term pregnancy lasts about 40 weeks, counted from the first day of the last menstrual periodlast MEN-stroo-ul PEER-ee-udThe first day of a person's most recent menstrual period.Full entry . It is divided into three trimesters of about 13 weeks each. The body changes in almost every system: blood volume rises by about half, the heart works harder, and hormones change. Gravida is the number of times a person has been pregnant; paraPAIR-uhThe number of pregnancies a person has carried to 20 weeks or more, whatever the outcome.Full entry counts the births.

For the nurse

Ask about the chance of pregnancy before x-rays and before giving drugs that could harm a fetus. Many drugs, vaccines and tests are chosen differently in pregnancy.

At a glance

Spanishembarazo
Also writtenpregnancies, pregnant

Related terms

implantation

The attachment of a fertilized egg to the lining of the uterus, the start of a pregnancy.

prenatal care

Health care for a pregnant person and the unborn baby during pregnancy, before birth.

EDD

Estimated date of delivery: the expected due date of a pregnancy.

last menstrual period

The first day of a person's most recent menstrual period.

para

The number of pregnancies a person has carried to 20 weeks or more, whatever the outcome.

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