Pregnancy Weekly Guide
[Week 15 Baby] My cutie pie is sucking own thumbs!
Many internal organs are formed, and the hair starts to grow on the head. Your baby also demonstrates the "sucking reflex," an instinctive urge to thumb sucking.
From the finished outer genitalia, it is possible to tell the gender of your baby now on ultrasound. However, this may be hard to see depending on the position and posture of the baby at the time.