Week 5

About one week after your missed period, your pregnancy will be visible on ultrasound. At this point, it is a small fluid collection called a gestational sac. It is just 2/10 of an inch in diameter and lies within the lining of the uterus known as the deciduas. (See Below.) Even though the baby is still too small to see, this first visual proof of the developing pregnancy is very exciting.

 

5-week ultrasound

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