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Month 1
- Missed mentrual period.
- Other signs of prenancy may not yet be noticeable.
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Month 1
- Size: at 2 weeks, the size of a pin head.
- Egg attaches to lining of uterus.
- Critical stage for brain and spinal cord to develop.
- Internal organs and curculatory system begin to form.
- The heart begins to beat.
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Implantation
The lining of the uterus has thickened enough to provide a place for the zygote to attach itself and continue to grow. The zygote usually implants in the lining of the uterus and is covered over by that lining. -
Cell Division
While the zygote is still in the Fallopian tube, it begins to grow by cell division. The single cell splits into two cells rapikdly multiply to four, then to eight, and so on. -
Month 2
- Breasts begin to swell.
- Pressure on bladder from enlarging uterus results in need to urinate more frequently. 3.Possible nausea ("morning sickness")
- Fatigue is common.
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Month 2
- Size: Aabout 1/4 inch (6mm) long as month begins.
- Face, eyes, ears, and limbs take shape.
- Bones begin to form.
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Month 3
- Breasts become firer and fuller, may ache.
- Nausea, fatigue, and frequent urination may continue.
- Abdomen becomes slightly larger. The uterus is about the size of an orange.
- Weight gain may total 2-4 pounds (0.9-1.8kg)
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Month 3
- Size: ABout 1 inch (25mm) long as month begins.
- Nostrils, mouth, lips, teeth buds, and eyelids form.
- Fingers and toes almost complete.
- All organs present, although immature.
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Month 4
- Abdomen continues to grow slowly.
- Most discomforts of early pregnancy, such as morning sickness, usually gone.
- Appetite increases.
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Month 4
- Size: ABout 3 inches (7.6 cm) long, 1 ounce (28g) as month begins.
- Can suck its thumb, swallow, hiccup, an dmove around.
- Facial features become clearer.
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Month 5
- Enlarged abdomen becomes apparent.
- Slight fetal movements felt.
- Increased size may begin to affect posture.
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Month 5
- Size: About 6 1/2 - 7 inches (16-18 cm) long, about 4-5 ounces (113-142 g) as month begins.
- Hair, eyelashes, and eyebrows appear.
- teeth continue to develop.
- Organs are maturing.
- Becomes more active.
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Month 6
- Fetal movements sensed as strong kicks, thumps, and bumps. Some may be visible.
- Weight gain by the beginning of this month may total 10-12 pounds (4.5-5.4 kg)
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Month 6
- Sized: About 8-10 inches (21-25 cm) long, about 8-12 ounces (227-340 g) as month begins.
- Fat deposits under skin, but fetus appears wrinkled.
- Breathing movements begin.
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Month 7
- Increased size may affect posture.
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Month 7
- Size: About 10-12 inches (25-31 cm) long, about 1 1/2 - 2 pounds (680-907 g) as month begins.
- Periods of activity followed by periods of rest and quiet.
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Month 8
- Discomfort may result from increased size. Backache, leg cramps, shortness of breath, and fatigue are common.
- Fetal kicks may disturb the mother's rest.
- At the beginning of this month, weight gain totals about 18-20 pounds (8.2-9.1 kg)
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Month 8
- Size: ABout 14-16 inches (36-41 cm) long, about 2 1/2 - 3 pounds (1.0-1.4 kg) as month begins.
- Weight gain continues rapidly.
- May react to loud noises with a reflex jerking action.
- Moves into a head-down position.
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Month 9
- "Lightening" felt as the fetus drops into the pelvis. Breathing becomes easier.
- Other discomforts may continue.
- A total weight gain of 25-35 pounds (11.3-15.9 kg) is typical.
- False labor pains may be expierienced.
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Month 9
- Size: About 17-18 inches (43-46 cm) long, 5-6 pounds (2.3-2.7 kg) as month begins.
- Weight gain continues until the week before birth.
- Skin becomes smooth as fat deposits continue.
- Movements decrease as the fetus has les room to move around.
- Acquires disease-fighting antibodies from the mother's blood.
- Descends into pelvis, ready for birth.