Fetal development in pregnancy week 13

This is your final week in the first trimester and your little weed continues to grow and grow and grow. Of the three trimesters, this one has been the most important for your little one’s development. Assuming you’ve carefully adopted a healthy diet, exercise and ample rest, your little one is set up perfectly for even more growth and development in tri two! Way to go! He or she now weighs about 2.5 ounces and is roughly 3.5” in length. Little hairs, known as lanugo, will start to cover their body this week, as their sense of taste and smell are further refined. Their cozy little amniotic sac is also increasing in size and mass, as it continues to fill with more fluid.