Halfway through the second trimester soon. The fetus is about 4.5 inches long. Ultrasound might show more details.
Week 9 - Fetal Movement Starts
Week 2 - Embryonic Stage
Week 15 - Hair Growth Begins
Week 8 - Major Organs Develop
Week 17 - Fat Layers Develop
Week 7 - Facial Features Form
Week 29 - Lung Function Improves
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