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Month 1
Size: pinhead
The heart begins to beat -
Month 2
Size: 1/4 inch
Bones begin to form -
Month 3
Size: 1 inch
Buds for all 20 teeth appear
All organs are present, but still immature -
Month 4
Size: 3 inches
Facial features become clearer -
Month 5
Size: 6.5 - 7 inches
Weight: 4-5 ounces
Hair, eyelashes, and eyebrows appear -
Month 6
Size: 8-10 inches
Weight: 8-12 ounces
Breathing movements begin -
Month 7
Size: 10-12 inches
Weight: 1.5-2 pounds
Has periods of activity followed by periods of rest and quiet -
Month 8
Size: 14-16 inches
Weight: 2.5-3 pounds
May react to loud noises with a jerk reflex -
Month 9
Size: 17-18 inches
Weight: 5-6 pounds
Gains disease-fighting antibodies
Descends into the pelvis, ready for birth