As medical professionals have a precise idea of the baby’s development over nine months, knowing the foetal age makes it easier to judge if everything is fine with the baby.
The scan also gives a due date, which is sometimes a small range of dates due to a difference with your own dating attempt.
While many women will have a good idea of when they had their last menstrual period, another portion will be far less certain.
This can be due to a number of factors, including whether the pregnancy was planned or not, and if the mother often has irregular periods.
Because of this, we did an ultrasound and a due date was set.
These ultrasounds came in handy the next two pregnancies as well.
But should you keep going to work as usual, or fumble through the car seat installation instructions and get that birth bag ready?
The dating scan is generally the first ultrasound that every mother-to-be will have.When you are offered a dating scan and the sonographer gains a picture of the baby’s development, they can use this to accurately calculate the baby’s age based on their size and formation.This allows more precise timing for later scans, doctors’ appointments and check-ups on both mother and baby.An accurate due date is crucial so that, in the event of being overdue, your doctor knows whether you are drastically overdue or simply a few days late.For women with erratic menstrual cycles, trying to determine a due date can be frustrating. Not having a period for a few months at a time was pretty normal so I didn’t suspect I was expecting until I started having horrible morning sickness.If you positively know your conception date, you can add 267 calendar days to it to calculate your pregnancy due date.The following formulas can also tell your Expected Due Date : Date of the first day of your last period 281 days = due date or Date of the first day of your last period 7 days - 3 months = due date The due date calculation methods here are based on the average 28-day cycle. I didn’t find out I was pregnant with Daniel until I was at least 10 weeks along.When I went to the doctor I had no idea what to tell them when they asked how far along I was.Pregnancy, on average, lasts 267 days (38 weeks) from conception.If you positively know your conception date, you can add 267 days to it for your due date.A simple formula for calculation of your due date is also provided after this pregnancy due date calculator.Use our due date calculator to work out when you might expect your baby to arrive. As part of your antenatal care, your midwife or doctor will also offer you a dating scan that will give you a more accurate due date for the birth of your baby.She ended up having her baby the 14th, so it looks like technology won the battle in this case.