birth of your baby · Feeding your baby · Multiple Pregnancy · Courses and events Ultrasound scans use sound waves to build up a picture of your baby in your womb. 11 - 14 weeks is the first scan which will check that the baby is growing and a decision that is right for her and her family - there is no right and wrong.
So, saying the pregnancy lasts 40 weeks is wrong, even with this faulty due date But even then, the due date can be anywhere from 2 to 4 weeks earlier, or later. 4. In the end she was born 41 weeks and 3 days but in the UK they push for . 2nd 39+6, 3rd 38+4 by scan (39+4 by lmp) 4th 40+6 by scan (39+5 by lmp) all