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Month 1
Fertilization of the egg occurs. From conception to 4 weeks. Size of a pinhead at 2 weeks. Internal organs and circulatory system begin to develop and the heart starts beating. -
Month 2
About 6 mm (1/4 inch) long when the month starts. Facial features, eyes, ears, and limbs start forming along with the bones. Connection of the spine and brain allow the embryo to have its first few movements. -
Month 3
About 25 mm (1 inch) long when the month starts. Formation of nostrils, mouth, lips, and eyelids. All 20 baby teeth buds appear. Toes and fingers are almost completely formed. All organs exist but are immature. Can slightly move. -
Month 4
About 3 inches long and weighs once ounce at beginning of the month. Has the ability to suck their thumb, hiccup, swallow, and move around. Clearer facial features. -
Month 5
About 16 to 18 cm long (6 and a half to 7 inches) and weighs around 4 to 5 ounces at the beginning of the month. Hair on head, eyelashes, and eyebrows are visible. Maturation of organs and increase in activity in the womb. -
Month 6
Around 8-10 inches long and weighs around 8 to 12 ounces at the beginning of the month. Fetus looks wrinkled bu there are fat deposits under the skin. Starts having breathing movements. -
Month 7
Around 10-12 inches long. Weighs about 1 and a half to 2 pounds at the beginning of the month. Starts having times of activity followed by quiet and rest. Capable of living outside the uterus but with a lot of medical help. -
Month 8
Around 14-16 inches long and weighs around 2 and a half to 3 pounds at the beginning of the month. Continues rapidly gaining weight. Has the ability to react to loud sounds with a jerking action as a reflex. Positions itself in a head down position. -
Month 9
Around 17 to 18 inches long and weighs around 5 to 6 pounds at the beginning of the month. Continues gaining weight. Fat deposits continue and the fetus's skin becomes smooth as this happens. Decrease in movements because there is less room to move around. Receives antibodies that fight disease from the blood of their mother. Moves head down into the pelvis when approaching their time of birth.