If you go earlier - i went at 5 weeks 5 days they do a vaginal scan - which while uncomfortable and a bit cold is not even as bad as a pap smear - really nothing to worry about - and as my gp said. This is why an early pregnancy dating scan, rather than one done in the later stages of pregnancy, is considered more accurate when assessing the expected date of delivery with maturity, the size of the baby correlates less to its age than in the early weeks.
After your 12-week scan, your next ultrasound probably won't be until you're 20 weeks' pregnant when you have your anomaly scan this can also be a chance to find out if you're having a boy or girl if you want. You can just ask your doctor for a dating scan, say you're not too sure about when exactly you conceived and how far you are dating scans should be done between 65 and 9 weeks i would suggest going after 7 weeks so you will be guaranteed to see a heartbeat and you won't be told it's too early, which can be quite distressing. As long as the timings are right, you can have the nt scan and blood test at the same appointment as your dating scan but you'll have the dating scan first that's because the screening test needs an accurate due date to be reliable (nice 2008, phe 2014, nhs 2015b, uk nsc 2016).
Your 12-week ultrasound scan is the 1st of the 2 routine pregnancy scans you're offered on the nhs it's officially known as the 'dating scan' because it's used to pinpoint your baby's due date.
What will the dating scan involve before you go for your scan, you’ll be asked to drink lots of water and arrive with a full bladder this can be a bit uncomfortable if you have to wait with a full bladder but it does put your uterus in a better position for scanning. In the uk healthcare providers will go by the 12 week dating scan measurements to determine your baby's due date with dd1 lmp and scan was 5 days out, dd2 was 2 days out and dd3 only 1 day out xxxx.
The dating scan can include a nuchal translucency (nt) scan, which is part of the combined screening test for down's syndrome, if you choose to have this screening the second scan offered to all pregnant women is called the anomaly scan, or mid-pregnancy scan, and usually takes place between 18 and 21 weeks of pregnancy.
If your pregnancy is going well, your first ultrasound scan will be your dating scan, between 10 weeks and 14 weeks of pregnancy early scan an early scan is offered from six weeks, so before your dating scan your midwife or gp will only recommend an early scan if there's a concern, for example, if you've had bleeding in this pregnancy your gp may also refer you for a scan if you've had a.