Have you ever wondered what happens to you and baby in Week 13 of pregnancy?

To read week 12, please click here.

Here is a detailed list of Week 13 pregnancy facts:

• The fetus about 3 inches long, double its length at week 7.
• The fingernails appear.
• The beginnings of finger and footprints begin to form.
• Tooth buds appear for all 20 baby teeth.
• The vocal cords begin to form.
• The trachea, lungs, stomach, liver, pancreas and intestines develop into their final functioning form.
• The pregnant mother will now begin to have signs of a visible baby bump.
• Your nipples will have become darker and the blue veins in your breast become more noticeable.

For more information please take a look at this video:

Main image courtesy of Shutterstock.com