How accurate is a dating scan at 8 weeks dating when you have children

07 Feb

I'll never forget one nurse asking me, 'Do you think you could just pop to the loo and let just a little bit out? ’ When it comes to the actual scan you'll lie on your back and then some sticky, clear gel will be rubbed over your abdomen.The sonographer will check your baby's spine for any visible abnormalities.They will also look at the head, limbs, feet, heartbeat and check that the major organs are developing as they should.The clarity of the picture depends on a number of things.For instance, if you have any abdominal scarring or are overweight the picture may not be as clear.

The sonographer will tuck some tissues under your clothes so you don't get gel all over them.He or she will then move a hand-held transducer over your belly, which bounces high-frequency sound waves off your baby to create a picture on the monitor.It's more common to be told you're less far along than you thought you were, rather than that you're actually further along in the pregnancy.You may also be offered a nuchal translucency test at this appointment.The results of the nuchal test are put together with the results of blood tests that are usually done a bit earlier to screen for the risk of your baby having conditions such as Down's, Edwards and Patau syndrome.The “risk” will be expressed as a number, for example, one in 450.The scan is primarily for dating but the sonographer will also look in on a few more things at the same time.Here are the main checks they'll be making: Your baby will be measured and the exact stage of pregnancy will be calculated from the measurement made from crown to rump.