1st trimester of pregnancy symptoms

The average human pregnancy is 40 weeks long. However, a pregnancy is considered term between 37 weeks and 41 weeks 6 days.

Here are the other terms used to describe babies born at different times in the pregnancy cycle:

• Babies born on or before 36 weeks and 6 days are considered preterm or premature.
• Babies born between 37 and 38 weeks and 6 days are considered early term.

  Signs your pregnancy is going well in the first trimester

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• Babies born between 39 weeks and 40 weeks and 6 days are considered full term.
• Babies born between 41 weeks and 41 weeks and 6 days are considered late term.
• Babies born on or after 42 weeks are considered post-term or post-date.

Note: Before October 2013, babies were considered term between week 37 and week 42 of gestation.

To calculate the length of your pregnancy, begin with the ovulation date. The two weeks prior to ovulation are considered weeks 1 and 2 of pregnancy.

For women who ovulate on day 14 of the menstrual cycle, day 1 of pregnancy will correspond with day 1 of the last menstrual period (LMP).

Pregnancy can be divided int

how long is the first trimester

how long does each trimester of pregnancy last