Life Card: You’re moving from the country to the inner city. This can affect Mom because the country is very quiet and relaxing where the city is much busier. Mom may become more stressed because of the noise and amount of commotion going on around her. This could affect the baby because Mom is not relaxed and calm. Mom also may not be resting enough because the noise could be keeping her awake.
Timeline:
Week 8: Your embryo, now about in its sixth week of development, is about the size of a grape -- 0.56 to 0.8 inches from crown to rump. Eyelid folds and ears are forming and even the tip of the nose is visible. The arms have grown longer and bend at the elbows. Places where fingers and toes eventually will grow are becoming notched.
Week 9: The embryo measures about 0.9 inches to 1.2 inches from crown to rump, or the size of a strawberry. The arms and legs are longer, and the fingers might be a little swollen where the touch pads are forming. The head is more erect and neck is more developed. Your baby now moves its body and limbs, and this movement can be visible during an ultrasound, but you won't be able to feel it yet.
Week 10: Your baby is now officially called a "fetus." It looks a little like a medium shrimp, measuring 1.25 to 1.68 inches from crown to rump, and weighing a little less than two-tenths of an ounce. You might be reassured to know that most physical malformations, when they occur, have occurred by the end of this week, so the most critical part of your baby's development is safely behind you. But other developmental processes, such as those affecting behavior and intelligence, will continue throughout pregnancy. Eyes are covered by skin that will eventually split to form eyelids.
Week 11: Your fetus, about the size of a large lime, measures about 1.75 to 2.4 inches from crown to rump and weighs about three-tenths of an ounce. About now the rapid "swooshing" noises of the heartbeat can be heard through a Doppler sound-wave stethoscope. Fingernails and external genitalia are showing distinguishing characteristics, and the baby is swallowing and kicking, although you still won't feel it.
Week 12: The fetus now measures about 2.5 inches from crown to rump and weighs between three-tenths of an ounce and half an ounce. It is fully formed, from tooth buds to toenails, and your baby's job now is to continue getting larger and stronger for the rest of your pregnancy. With the most critical development behind the fetus, the chance of miscarriage drops considerably after this week.
Week 13: Your fully formed fetus, now in about its 11th week of development, measures 2.6 to 3.1 inches from crown to rump and weighs between half an ounce and seven-tenths of an ounce -- about the size of a peach. The head is still disproportionately bigger than the body, but the rest of the body is starting to catch up. In fact, your baby is growing rapidly these days. The face is starting to look more human, with eyes moving closer together. Toes and fingers are clearly separate, and ankles and wrists have formed. External genitalia are becoming visible. Intestines are shifting into their proper place, too.
Week 14: Your baby measures about 3.2 to 4.1 inches from crown to rump now and weighs almost an ounce. The ears are shifting from the neck to the sides of the head, and the neck is getting longer and chin more prominent. Facial features and unique fingerprints are all there. Your baby is beginning to respond to outside stimuli. If your abdomen is poked, the fetus will try to wriggle away.
Week 15: Your 13-week-old fetus now measures about 4.1 to 4.5 inches from crown to rump and weighs about 1.75 ounces. Its body is covered by an ultrafine hair, called lanugo, which is usually shed by birth. Eyebrows and hair on the top of the head are beginning to grow. He may even be sucking his thumb by now. Bones are getting harder.
Week 16: Your baby now measures about 4.3 to 4.6 inches from crown to rump and weighs about 2.8 ounces. Fingernails are well-formed and the fine hair, lanugo, may be growing on the head. Arms and legs are moving. The nervous system is functioning and muscles are responding to stimulation from your baby's brain. You may be able to hear the baby's heartbeat in the doctor's office.
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