Even dating scans can be inaccurate for the due date, but they are never as inaccurate as using the menstrual period. For instance a dating scan done at 6 weeks could get the date wrong five days either way.

How accurate are early scans at dating?

The earlier the ultrasound is done, the more accurate it is at estimating the babys due date. Ultrasounds performed during the first 12 weeks of pregnancy are generally within 3 - 5 days of accuracy. The most accurate time is between 8 and 11 weeks gestation.

Can I be further along than I think?

If your periods are usually irregular, you could actually be further along in your pregnancy than you think. 3. Pregnancy is normal. “[Pregnancy] is probably the first time in your life that youre going to your doctor for something thats completely routine and normal,” said Dr.

Why do I feel more pregnant than I am?

Shorter women, and those who have short torsos, tend to show pregnancy more because theres less vertical room for their baby to fill. Also, women whove been pregnant before often start showing earlier than first-time moms.

Why do I look further along than I am?

This is probably because your tummy muscles have been stretched by previous pregnancies. Being overweight, or gaining a lot of weight during pregnancy, may also make your bump look bigger.