Early pregnancy dating

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A registered nurse with more than 25 years of experience in oncology, labor/delivery, neonatal intensive care, infertility and ophthalmology, Sharon Perkins has also coauthored and edited numerous health books for the Wiley "Dummies" series.

Perkins also has extensive experience working in home health with medically fragile pediatric patients.

We at MUMS understand that the first few months of pregnancy can be quite an anxious time for many women with various concerns as to whether the pregnancy is developing normally or that it may result in a miscarriage or even an ectopic pregnancy.

An ) provides reassurance in this very early stage of your pregnancy.

The limbs and the yolk sac, though obviously important, are not the primary means of measuring growth.

These appointments do not require a doctor’s referral and can be taken as an addition to your hospital scans.

At around seven weeks of pregnancy, it’s reasonably common for women to have their first ultrasound.

This can be for many reasons but the most common is to confirm pregnancy and to check that the embryo is viable and “everything’s ok”.

Before the advent of routine ultrasound in pregnancy, medical personnel estimated a baby’s due date by the date of the last menstrual period and by feeling the uterus and determining the size to see if it matched the given due date.

With transvaginal ultrasound, checking for embryonic development known to occur within a certain time frame more accurately dates a pregnancy.

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