Most women have an ultrasound scan performed early in the 1st trimester, usually between 7-10 weeks. For very early scans, performed before 8 weeks, it may be necessary to perform a trans-vaginal ultrasound, which is perfectly safe for your baby. After 8 weeks, the normal abdominal scan is usually sufficient.
Because the 1st trimester is a very accurate time to assign a pregnancy “due date”, the 1st trimester ultrasound is often called a dating scan. However, an early pregnancy ultrasound is far more helpful than simply confirming a woman’s due date. Benefits of a 1st trimester scan include: