Accuracy of early pregnancy dating scans
If you have an irregular cycle, or if you've recently been taking the contraceptive pill, working out the date from your LMP isn't a very accurate method. The scan can check that your baby has a heartbeat and is developing normally.
Your baby's head, limbs, hands and feet, and some organs can be seen.
Looking for abnormalities isn't the purpose of this scan, though.
That's the job of your next routine scan at about 20 weeks, when more detail can be seen as your baby grows bigger.
Having a scan in the first few months of pregnancy can be a thrilling experience.
It's amazing to see the little blob with a heartbeat that will soon become your baby.
Finding out about having twins early in pregnancy also gives you more time to prepare for the birth and for your doctor or midwife to plan your care.
Knowing about twins early is also useful if you want to have screening for Down syndrome.
It may lead to you being given a high risk factor when your baby is actually developing normally (false positive result). Kettering: National Down's Syndrome Screening Programme Westfall RE, Benoit C. The rhetoric of "natural" in natural childbirth: childbearing women's perspectives on prolonged pregnancy and induction of labour. On the notes for the dr she put dates don't match not sure of viability of pregnancy...
For most mums-to-be, the first scan will be a dating scan at between 10 weeks and 13 weeks plus six days of pregnancy.