You'll have a dating scan, also known as a 12-week scan between about 10 weeks and 14 weeks of pregnancy for most mums-to-be, this is their first scan (nice 2008, newson 2014) you'll only have a scan before this, between six weeks and 10 weeks, if you've experienced bleeding , pain, or problems in a previous pregnancy (miscarriage.
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 (nice 2008) however, the timing of your first scan will also depend on how your pregnancy is going, and where you live. I just had my scan today, i thought i was 5 weeks but my scan showed up at 5weeks 4 days all i saw was a black sac nothing else i have to go back in 2 weeks to see if thesac is growing and if there is a baby in there. Your dating scan or 12 weeks scan is your first ultrasound scan, and is used to predict the due date of your baby as well as help to ensure the foetus is developing normally and determine exactly how many babies you have in there although the scan is often referred to as your 12 week scan the.
You won't be offered the combined screening test if your dating scan happens after 14 weeks instead, you will be offered another blood test between 14 and 20 weeks of pregnancy to screen for the risk of down's syndrome. You can have a dating scan anytime after 8-13ish weeks however if you want the nuchal translucency scan as part of the combined test for downs your so called '12 week' scan has to be done between 11-13 weeks.
Scans in early pregnancy are usually performed in the first trimester around 12 weeks you may have a earlier scan, if you are experiencing pain or bleeding for example or unsure of lmp dates.
An early pregnancy scan (sometimes also called a viability scan or dating scan) provides reassurance in this very early stage of your pregnancy a pregnancy can be seen from as early as 6 weeks from the first day of your last period (lmp) and not the date of conception. You may have gone to your doctor with vaginal bleeding or you may be anxious because of problems in a previous pregnancy (such as miscarriage) this ultrasound can routinely detect a heartbeat in your baby as early as 6-7 weeks. I am 7 weeks pregnant with my first baby, my gp sent me for a scan at when we predicted i would be 6 weeks for a dating scan when i went to the ultrasonographer, she said that i was 5 weeks 4 days at this time she did an external and internal ultrasound.