About 3.6 million babies are born within the United States every year, a median of 9,863 per day. Here's a take a look at pregnancy and birth within the US
Conception so far of birth
The average length of pregnancy is about 266 days. Since the precise estimate of ovulation is generally not known, an estimate of the date of birth is made based on the day of the last menstrual period. This is generally 14 days before ovulation, so 14 days are added to the variety of 266, making a complete of 280 days or 40 weeks.
Only about 5% of ladies actually give birth exactly on the planned due date.
Calculating the date of birth
The usual way doctors estimate the expected due date is to count back three months from the primary day of the last menstrual period and add seven days. For example, if the last menstrual period began on May twelfth, the expected delivery could be February nineteenth (May twelfth minus three months + February twelfth plus seven days).
The table below shows conception (a) and date of birth (b).
Average baby
In the United States, the typical baby weighs just over 7 kilos and is 19½ inches long.
2022 statistics from the Centers for Disease Control and Prevention
Birth rate: 11.0 per 1,000 inhabitants
Fertility rate: 56.0 births per 1,000 women aged 15-44
Proportion of births with low birth weight: 8.60%
Proportion of premature babies: 10.38%
Proportion of single: 39.8%
Average age at first birth: 27.4
Number of vaginal deliveries: 2,486,963
Number of cesarean births: 1,178,066
Share of all caesarean section births: 32.1%
Most moms are millennials
Millennials made up 29% of the population and Millennial women accounted for 82% of births in 2016.
About 1 million recent moms per 12 months were Millennials in 2016.
One in three (32%) female staff is the mother of kids under 18.
Mothers have fewer children
Fewer moms today are having three or more children than 40 years ago, and most don’t have any greater than two children.
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