13 Weeks Pregnant: Baby Growth, Symptoms, and Signs | Week-by-Week Guide

Adult human female anatomy diagram chartAt home insemination

At 13 weeks into your pregnancy, you are officially wrapping up the first trimester! Can you believe you’re already a third of the way through? Many expectant parents choose this time to start sharing the exciting news with family and friends, but the timing is entirely up to you.

Your Baby at 13 Weeks

  • Eyes Still Closed: Your baby’s eyes are formed but remain shut, as the eyelids are fused together, protecting those delicate eyes while they continue to develop.
  • Early Voice Development: The formation of vocal cords begins now, setting the stage for future coos, cries, and first words!
  • Body Proportions: Your baby’s large head is becoming more proportionate to the rest of the body, with the head measuring nearly half of the total size.

How Big is Baby at 13 Weeks?

Your baby is now about the size of a lemon, measuring approximately 3 inches long and weighing around 1 ounce.

If you’re curious about the breakdown of weeks, months, and trimesters during pregnancy, you can find more information in our other blog post on this topic. Also, check out Fetal Dopplers for more insights into monitoring your baby’s development.

As you navigate through this exciting phase, remember that resources like UCSF’s IVF can provide valuable information on pregnancy and home insemination.

Summary

At 13 weeks, your baby is developing rapidly, with eyes that are still closed, the beginnings of vocal cords, and a head that is becoming more balanced with its body. This week marks a significant milestone as you prepare to enter your second trimester. Embrace this journey, and don’t hesitate to access our linked resources for further information.