Take a look at each week of your pregnancy, from conception to birth, with our comprehensive email newsletters. You'll need to activate to enter promotions -. If this is your first ultrasound you will be understandably anxious. Getting a glimpse of your baby for the first time is big. You are allowed to refuse any tests suggested by a healthcare professional if you feel unsure about them. Pregnancy healthcare professionals are used to lots of questions so ask away! From anywhere between eight and 12 weeks pregnant, your healthcare professional might suggest that you schedule your first ultrasound appointment.
Getting a glimpse of your baby for the first time is big. You are allowed to refuse any tests suggested by a healthcare professional if you feel unsure about them. Pregnancy healthcare professionals are used to lots of questions so ask away! From anywhere between eight and 12 weeks pregnant, your healthcare professional might suggest that you schedule your first ultrasound appointment. The main reason for this scan is to confirm the gestational age of your baby.
Depending on your healthcare professional and your personal preferences, your eight week ultrasound can be performed using a wand across your abdomen or another type of wand inside your vagina. At this point in your pregnancy, an ultrasound can confirm that your baby is healthy and progressing as it should be.Possible miscarriage -- 8 Week Ultrasound
If you are having twins or more , you might be able to see multiple yolk sacs and multiple heartbeats. However, as it is still early days one baby may be missed at this stage. At eight weeks pregnant, your baby will measure about 1. Your little one will also start to make involuntary movements, similar to a slight flicker or a jump.
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Of course you have probably already used an online due date calculator.
how accurate is a dating scan?
This is where you discover that your due date isn't based on the date you conceived, it's actually calculated from when your last menstrual period started your LMP. It's because it gives a definite date for health professionals to work with. There would be so many variables if it was calculated from when you think you conceived, especially as everyone's cycles are different and the fact that you don't necessarily conceive on the day you have sex!
But this will only give you a rough idea.
Dating scan accuracy 8 weeks
This is especially true if you have an irregular cycle or have been on the Pill for example. Experts say that the scan date can sometimes come out as less pregnant than suggested by your LMP. But then again with my first baby I was spot on with dates, he always measured big and he was a week overdue Babies are ready when they're ready - try not to worry easier said than done. But Nigel also says that the estimated and that is all it is date is normally accurate plus or minus about a week.
The healthcare professionals will stick to this date as far as possible because it is then used as the baseline for growth throughout pregnancy. Your baby's growth can slow down and then have spurts.
I've not even had my 20 week scan yet. I have scans every few weeks so it will probably keep on changing. My baby will come when it's ready anyway, maybe weeks before or maybe weeks after my due date.
These can be carried out from week 5 or 6 of pregnancy, which is a notoriously tricky time to be accurate on dates. Measurements at such an early stage aren't accurate which is why they wait for 12 weeks to date you. Expert Jan Steward, who is director of Ultrasound Direct and Babybond, agrees that early scans carry a much greater risk of inaccuracy.
We always recommend mums get a definitive dating scan closer to 12 weeks as this will be much more accurate. Just half a millimetre at such an early stage can change your date by a week. Your week scan will be far more accurate.
The sonographer then said that I was only about 4. Then at the week scan I got an EDD of 15 march, so that early scan was completely out. Well, you'd think so, wouldn't you.
At around 12 weeks you can get more accurate measurements. By talking to the health care professionals you should get a clearer picture as to what is happening.