What happens at a dating scan

12 week pregnancy dating scan: here's what to expect

A dating scan is an ultrasound scan carried out at around 12 weeks of pregnancy. It's likely to be the first time you see your baby and their heart beating. You'll have a dating scan appointment, also known as a week scan, between about 10 weeks and 14 weeks of pregnancy NHS a. The point of the scan is to work out how many weeks pregnant you are. You may have calculated the length of your pregnancy from the first day of your last menstrual period LMP. However, conception doesn't actually occur until around 14 days after your LMP, or later if your cycle is longer than 28 days ACOG , Mongelli

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Back to Your pregnancy care. Ultrasound scans use sound waves to build a picture of the baby in the womb. The scans are painless, have no known side effects on mothers or babies, and can be carried out at any stage of pregnancy. Talk to your midwife, GP or obstetrician about any concerns you have. Having a scan in pregnancy is usually a happy event, but be aware that ultrasound scans may detect some serious health conditions. It's your choice whether to have screening. Your midwife can discuss your options with you.

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Dating scan

Now comes the moment when you might get to see your baby for the first time — the week scan. We run through what scans are and what to expect on the day. The purpose is to estimate the gestational age of your baby, and check for multiple pregnancy NICE, The scan builds a picture from the way high-frequency sound waves from a probe passed over your tummy reflect off your baby in your womb NHS,

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