How to calculate due date for a new baby will be one of the first thing your doctor will tell you when you go for your first prenatal appointment. They will ask you several questions to find out when the baby will be due. More detailed information can be given about the date of conception when you can give correct information about your menstrual cycle. This is why it’s so important to keep track of your menstrual cycles in a purse calendar so that you can always have the information on hand in the event you find yourself pregnant.

Due dates are just a basic guideline to follow for when your baby will be due. Only about 5% of babies are actually born on the day you are due.

It makes a great conversation with everyone you know as well. They are all going to ask when the baby is due and they may all want to show you how to calculate the due date their way. There are as many old wives tales about how to calculate due dates as there are for determining the unborn baby’s sex, which many of your family members and friends may want to do as well.

Determining the general time the baby will arrive is easy if you know how to calculate the due date in the following manner. It’s a pretty simple equation if you are sure about all your answers regarding your monthly menstrual cycle. The answers are based on 280 days or 40 weeks, the average amount of time a human is pregnant. All you do is add 280 days to the date of your last menstrual cycle. This works good if you have normal periods because the time from ovulation to the actual menstruation is 14 days.

If your periods are irregular and your normal menstrual cycle is longer than the average 28 days, you can adjust the due date for your own specifications with the way we showed you how to calculate due date. It also works for if you have a shorter cycle than 28 days.

No matter when you are due, the baby can come anytime after the 37th week. It is considered to be a full term baby at the end of the 37th week however most babies wait until 40 weeks to be born. A baby that is at 41 weeks is pushing the limit for being overdue. If labor has still not started by the 42nd week, you will be considered overdue. Overdue babies are at risk for becoming stressed and causing danger to their lungs along with other medical conditions that can happen with an overdue baby. At this point your doctor may revisit the pregnancy calendar to make sure he correctly figured how to calculate the due date for your baby. If he finds he was accurate the first time, he may talk with you about inducing labor or having an ultrasound to see what position the baby is in.

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