Here’s a look at motherhood and pregnancy in the U.S.

There are about 3.6 million babies born in the U.S. each year, which is an average of 9,863 a day. Here’s a look at pregnancy and birth in the U.S.
Conception to birthdate
The length of the average pregnancy is approximately 266 days. As the exact estimate of the ovulation is usually not known, an estimate of the birthdate is made using the day of the last menstrual period. This is usually 14 days before ovulation, so 14 days are added to the figure of 266, making a total of 280 days, or 4