Thank you for visiting nature. Pregnancy math can be a little murky. An ultrasound can help you determine how far along you are in your pregnancy. Every pregnant woman wants to know her due dateand a due date that is calculated from her last menstrual period with a due date calculator often doesn't match the due date that is estimated by her first ultrasound also known as a sonogram. A dating scan is an ultrasound examination which is performed in order to establish the gestational age of the pregnancy.
How accurate is a dating scan at 5 weeks.
All pregnant women look forward to knowing the due date of delivery of the baby. Materials and lead to a fetal pole is. NCBI Bookshelf. A dating scan is an ultrasound scan to determine how many weeks pregnant you are and your due date. You can calculate your due date by subtracting three months from the first day of your last menstrual period LMP and then add a week.
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