What is a dating scan cheryl cole simon cowell dating rumours
In the first trimester, your baby is measured from head to bottom. The CRL is very accurate in the first trimester, but after 13 weeks your baby can curl up and stretch out, so measuring the length becomes more difficult.The width of the head (biparietal diameter or BPD) then becomes the best way to measure your baby.During an abdominal scan, the doctor will put some (usually very cold) gel on your tummy.She will then move a small hand-held probe or transducer over your skin to get views of your baby.Having a scan in the first few weeks of pregnancy can be thrilling.It's wonderful to see the little blob with a heartbeat that will become your baby.At 10 weeks Your baby measures 3cm and the heartbeat can be seen and heard.
It will grow very quickly, doubling in size every couple of weeks.Usually two scans are done during the first trimester.A dating and viability scan, between six and nine weeks and an early morphology scan or NT scan between 11 and 13 weeks.If you are having a transvaginal scan (TVS), you will need to empty your bladder first. You will need to undress from the waist down so that the probe can be easily inserted into your vagina.
The nurse or assisting staff will usually cover your legs with a sheet while the scan is happening.
It is possible to see twins (or more) from about six weeks, though one baby may be missed at this early stage.