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Home > Health Library > Week 12 of Pregnancy: What's Going On Inside
Congratulations, you've made it through your first trimester! You can now hear your baby's heartbeat with a Doppler heart monitor. That can be very exciting.
Inside your uterus, an important organ called the placenta has formed. The placenta's main job is to give your baby oxygen and nutrients through the umbilical cord.
Wondering what your baby looks like now? As you enter the fourth month of pregnancy, your baby is about the size of a plum. Average baby length is 61 mm (2.4 in.).
Here are some of the important facts and developments around 12 weeks.
Current as ofSeptember 5, 2018
Author: Healthwise StaffMedical Review: Adam Husney, MD - Family MedicineKathleen Romito, MD - Family MedicineWilliam M. Gilbert, MD - Maternal and Fetal Medicine
Current as of:
September 5, 2018
Medical Review:Adam Husney, MD - Family Medicine & Kathleen Romito, MD - Family Medicine & William M. Gilbert, MD - Maternal and Fetal Medicine
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