![]() ![]() Some healthcare providers recommend eating or having a full bladder to make it easier to see the images and make the fetus more likely to move. Plan ahead by making any necessary arrangements for work or childcare. If you are seeing your healthcare provider afterward, your appointment could last up to 75 minutes. This will be one of your longer appointments - around 45 minutes for just the ultrasound. There isn’t much to do to prepare for your appointment. How do I prepare for my 20-week ultrasound? However, if you ask what body part you’re looking at, they can usually answer. Keep in mind, your technician can’t interpret the results of the scan for you. Ask your ultrasound technician if you are unsure what you are looking at. Unlike your first trimester ultrasound when the fetus looked like a tiny cluster of cells, the fetus looks more like a real baby at 20 weeks. You will most likely spot the fetus's head, nose, arms and legs. It may be hard for you to identify what you’re looking at on an ultrasound. What does an ultrasound look like at 20 weeks? Your due date will not change unless the fetus measures outside of that time frame. If fetal measurements are within 10 to 14 days of the predicted due date, then the fetus is considered to be developing adequately. In some cases, you might hear you are measuring ahead, on track or behind your due date. They compare these measurements against your due date. This line acts as a ruler, documenting the sizes of organs and limbs. You will see the sonographer draw lines on the screen. ![]() Several images are taken during this ultrasound.
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