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The estimated timelines listed below mandates the redating of pregnancy when these differences happen on obstetric US exams.

Basically if there is a discrepancy of 5 days between the CRL and the gestational age, and you are 8 weeks or less, the Due date will be set with the CRL Measurement, take a look on the table below.

The author is not responsible or liable for any mistreated pathologies or wrong treatments.

second and third trimesters measured via , , ,• As you probably know accurate pregnancy dating is important for diagnostic and management during pregnancy.

With this blog, I want to help you navigate the stages of pregnancy and parenting gracefully, by sharing my medical knowledge and my experience as a mom with you.

Ultrasound image of a gestational sac measuring 5 weeks 1 day.

Besides balancing my personal life and work, I love fashion, travel, and home decor!! Varies thought out the pregnancy.

I am sure any mom can relate to this.

I'll be happy to have you back.

Redating a pregnancy may occur when there is a discrepancy between the calculated by the last menstrual period LMP and that by ultrasound.

Also the information provided on my blog is designed to provide helpful information about the topic and are made with the best of my knowledge therefore is not intended to diagnose or treat any medical condition, For diagnosis or treatments on any medical problems consult your own physician.

In the previous post I explained more in deep about HCG levels in the first trimester and when are you expected to see an intrauterine pregnancy, HCG is also important on the process of dating your pregnancy and provide an accurate due date as well.