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.

What are the hidden signs of pregnancy?

Some weird early signs of pregnancy include:Nosebleeds. Nosebleeds are quite common in pregnancy due to the hormonal changes that happen in the body. Mood swings. Headaches. Dizziness. Acne. Stronger sense of smell. Strange taste in the mouth. Discharge.More items •29 May 2020