You may know when your LMP was, but not when you actually conceived. Soc Sci Med 59(7): 1397-408 Heo I was given the 23rd of january as my due date however based on the fetus age from scan I'm 24 1 day preganant which wpuld make my due date the 6th of January not the 23rd when counting 38 weeks from conception. Does a dating scan date a pregnancy from around about the day of conception?
Knowing about twins early is also useful if you want to have screening for Down's syndrome.
Your doctor will offer you a nuchal translucency (NT) scan. National Institute for Health and Clinical Excellence, clinical guideline 62. Multiple pregnancy: The management of twin and triplet pregnancies in the antenatal period.
How big your baby will be depends on when you have the scan: . Consent standards and guidance for Down's syndrome and Fetal Anomaly screening.
Most units offer a screening test for Down's syndrome at the same time as the dating scan.
However, if all is going well in this pregnancy, your particular hospital may not offer the scan.
Ask your GP if you want to have one anyway for extra reassurance, as she may be able to refer you.You'll be given a report of the scan which will tell you exactly how many weeks pregnant you are. Keep it with your maternity notes so your midwife and anyone else involved in your care can see it. This measurement, known as the crown rump length (CRL), is very accurate in the first trimester. If your cycle is irregular or you've recently been taking the contraceptive pill, working out the date from your LMP probably won't work. If the scan date differs from your period dates, the scan date will be used. So I can only think this is showing around abouts the day of conception?The scan will usually show that your pregnancy is less far along than suggested by your LMP. Hi, I am a bit confused I went for a scan in November 2015 it said I am due 29 April but the other day I went to a different gynae and they gave me 12 April as a due date. You may have calculated the length of your pregnancy from the first day of your last menstrual period (LMP).