All You Need To Know About Your BabyWhen Your Pregnant.
First Month:Your baby is still just a glimmer in youreye. Although its confusing to thinkabout a pregnancy starting beforeyour child is even conceived, doctorscalculate your due date from thebeginning of your last menstrual cycle,because its difficult to know exactlywhen conception occurred.Your embryo is really there, althoughits very small about the size of thehead of a pin. It doesnt look resemblea fetus or baby; its just a group ofabout 100 cells multiplying andgrowing rapidly. The outer layer ofcells will become the placenta, and theinner layer will become the embryo.Now that your egg is fertilized, itburrows into the lining of your uterus.This is called implantation
Second Month:Your baby is still tiny, but its heart, brain,spinal cord, muscle, and bones arebeginning to develop. The placenta,which nourishes your baby, and theamniotic sac, which provides a warmand safe environment where your babycan move easily, are still forming, too.The umbilical cord forms and connectsyour baby to your blood supply.Your baby is shaped like a tadpole, andits about the size of a BB pellet. Theeyes and limb buds are forming. Duringan ultrasound, your doctor may be ableto hear a heartbeat. Between days 17and 56 is a vulnerable time, becausethats when the baby is mostsusceptible to anything that can affectnormal growth.
Third Month: Your baby is about the size of a peanut. The head is more erect, and the neck is more developed. During an ultrasound, you might see how your baby moves, even though you cant feel it yet. Your baby is still small but looks and acts like a baby. Arms and legs are longer and can bend at the elbows and knees. Its another big growth week. When your doctor uses a Doppler stethoscope now, she can hear the rapid "swooshing" noises of the heartbeat. Your babys genitals are developing, but the sex cant be determined yet. All parts of your baby are developing, from tooth buds to toenails. Your baby will keep developing and getting larger and stronger for the rest of your pregnancy. By the end of this week, the chance of miscarriage drops considerably.
Fourth Month:Your baby is growing quickly! Eyes are moving into position, the ankles and wristshave formed, and though the head is still disproportionately big, the rest of the bodyis starting to catch up.Your babys ears are shifting from the neck to the sides of the head, and the neck isgetting longer and the chin more prominent. Facial features and unique fingerprintsare all there. Your baby is beginning to respond to outside stimuli. If your abdomenis poked, the baby will try to wriggle away.Your babys body is covered by very fine hair, called lanugo, which is usually shedby birth. Eyebrows and hair on the top of the head are beginning to grow, bones aregetting harder, and the baby may even be sucking his thumb. You may be able to hear the babys heartbeat in the doctors office. Fine hair,lanugo, may be growing on the head. Arms and legs are moving, and the nervoussystem is working.
Fifth Month:Your baby, now about in its 15th week of development,measures about 4.4 to 4.8 inches from crown to rump and hasdoubled in weight in the last two weeks to about 3.5 ounces. Fatbegins to form, helping your babys heat production andmetabolism. The lungs are beginning to exhale amniotic fluid,and the circulatory and urinary systems are working. Hair onhead, eyebrows and eyelashes is filling in.Your baby measures 5 to 5.6 inches from crown to rump andweighs about 5.25 ounces. The rapid growth spurt is taperingoff, but reflexes are kicking in. It can yawn, stretch and makefacial expressions, even frown. Taste buds are beginning todevelop and can distinguish sweet from bitter tastes. The babywill suck if its lips are stroked and it can swallow, and even getthe hiccups. The retinas have become sensitive to light, so if abright light is shined on your abdomen, baby will probably moveto shield its eyes.Your baby measures about 5.2 to 6 inches from crown to rumpand weighs about 7 ounces. Skin is developing and transparent,appearing red because blood vessels are visible through it.Creamy white protective coating, called vernix, begins todevelop.
Sixth Month:Your baby measures about 7.2 inches from crown torump and weighs about 10.5 ounces. The fetus issteadily gaining fat to keep warm. Growth rate is slowingdown but organ systems, like digestion, are continuingto mature. A waxy film, called the vernix caseosa, isbeing produced by your babys oil glands and covers theskin to keep it supple in the amniotic fluid. Buds forpermanent teeth are beginning to form.Your baby measures about 7.6 inches and weighs about12.3 ounces. The muscles are getting stronger everyweek now, and the eyelids and eyebrows aredeveloped. Your babys acrobatics are pretty constant,and since he responds to sound, rhythm and melody,you can try singing and talking to him. After hes born,the same sounds will soothe him.Your baby is about 8 inches from crown to rump andweighs almost 1 pound. The body is becomingproportioned more like a newborn, but skin is stillwrinkled because your baby still has more weight togain. Lanugo hair on the body sometimes turns darker.
Seventh month:Your babys hearing is fully developed. As thebaby reacts to sounds, its pulseincreases.Your baby will even move in rhythmto music. Lungs are still growing but are notyet mature. Patterns of your babys brainwaves appear like a full-term newborn. He orshe also has patterns of sleeping and waking.Your babys hands are active. Thumb-suckingcalms the baby and strengthens cheek andjaw muscles. Your baby can cry now.Your baby measures about 10 inches fromcrown to rump, or a total length of about15.75 inches from head to toe, and weighsabout 2.4 pounds. Brain waves show rapideye movement (REM) sleep, which meansyour baby may be dreaming. Eyelids areopening. Branches of lungs are developing.
Eigth Month:Your baby can hear distinct sounds, includingfamiliar voices and music. Your baby measuresabout 18.9 inches long from head to toe andweighs almost 4 pounds. Baby fills almost all thespace in your uterus now, but may still haveenough room to do somersaults. A layer of fat isforming under your babys skin. The baby ispracticing opening his eyes and breathing.The next few weeks will mark lots of growth in thebaby. The baby will gain more than half its birthweight in the next seven weeks. Your baby beginsto move less now as it runs out of room and curlsup with knees bent, chin resting on chest, andarms and legs crossed.Your baby measures about 19.8 inches from headto toe and weighs about 5 pounds. The baby isprobably settling into the head-down position,although it might not be final. Organs are nowalmost fully mature, except for lungs, and the skinis pink instead of red. Fingernails reach the endsof fingers, but toenails are not yet fully grown. Thebaby might have lots of hair and may not move as
Ninth Month:Your babys lungs are almost fully developed. Its stillbuilding fat deposits beneath its skin to keep warm after itleaves your womb.Your baby measures about 20.7 inches from head to toeand weighs about 6 pounds. The baby may drop lower inyour abdomen, usually assuming the head-down positionto prepare for birth. The brain has been developing rapidly,and your baby is practicing blinking.Your baby is about 21 inches from head to toe and weighsalmost 6.5 pounds. The baby is getting rounder every day,and skin is getting pinker and losing its wrinklyappearance. Your babys head is usually positioned downinto the pelvis by now. Most of your babys downy hair, lanugo, and whitishcoating, vernix, are disappearing. Your baby is getting itsantibodies from you to protect against illness. The babysgrowth is slowing, but fat cells under skin get plumper forlife outside the womb. Your baby is almost ready for birth.