By the end of week four, the child is ten thousand times larger than the fertilized egg.
Week 5: Eyes, legs, and hands begin to develop.
Week 6: Brain waves are detectable; mouth and lips are present; fingernails are forming.
Week 7: Eyelids, and toes form, nose distinct. The baby is kicking and swimming.
Week 8: Every organ is in place, bones begin to replace cartilage, and fingerprints begin to form. By the 8th week the baby can begin to hear.
When I found out I was prego with this baby I went to the hospital for pains and they said I was like only a week pregnant. But when I went for blood work I was about 3 weeks. And hen I went to the doctor I was right at about 4 weeks. So it's hard to tell.
The brain contains pockets or spaces called ventricles with a spongy layer of cells and blood vessels called the choroid plexus. This is in the middle of the fetal brain. The choroid plexus has the important function of producing a fluid called cerebrospinal fluid. The fluid produced by the cells of the choroid plexus fills the ventricles and then flows around the brain and the spinal cord to provide a cushion of fluid around these structures.
i had my doctors appointment today the doc afformed me i was 6wks 3days today at the time of my first ultra sound i was approx 5wk 5days no heartbeat only yolk sak and development begfining so the doc said this was normal and heartbeats are usually detected in wk six or even wk seven the nurse tried to say there may only ever be a yolk sac and no bub but the doc and the lady who performed the ultrasound said no heartbeat or fetal pole can be normal at the early stage of five wks now im confused
If you break embryonic and fetal development into thirds then when you are in your 28th week the baby begins its final third of development. (Gestation is 266 days or 38 weeks of development). So either way you look at it you are in your 3rd trimester!
Usually the 5th week you will see the gestational sac but maybe no fetal pole. By week 6-7 you should see the fetal pole and if you're lucky a heartbeat. By week 8 you should get a heartbeat. So if you are only 5 weeks it sounds like your development is very good seeing both a fetal pole and hb. Did he mention what the heartrate was?? I am not sure what the "likely" fetal pole means because if there is a heartbeat then there is definitely a fetal pole there!!
The fetal brain may create these cysts as a normal part of development. They are temporary and usually are gone by the 32nd week of pregnancy.
Breathing in the Womb
Babies do not actually breathe in the womb---at least, not in the usual sense. Fetal lungs are not fully functional, and are not even able to fully expand, until after birth. During the later stages of gestation, the fetus may "practice" breathing by inhaling and exhaling amniotic fluid. The fetal lungs do not process the amniotic fluid, the way fully formed lungs process air, but experts believe this "breathing" is important to fetal lung development.
I just went off the pill this week after 7 years on it. My last few periods have been much lighter than before. Should I be worried about this or will this mean my body will take longer to have regular periods now that I'm off the pill?
Also: when should I start taking prenatal vitamins as I'm trying to conceive?
The doctors wait until 20 weeks because of development. I forget what the doctor told me but there is something very important in development around 20 weeks. They check at 20 week a to be sure it developed right. My doctor always says that the ultrasound is to make sure everything is okay not to find out what the baby is.
From wikipedia-
During embryological development, some fetuses may form choroid plexus cysts. These fluid-filled cysts can be detected by a level II ultrasound (18–20 weeks gestation). The finding is relatively common, with a prevalence of ~1%. Choroid plexus cysts (CPC) can be an isolated finding, which confers a 1% (variable based on population studied) risk of fetal aneuploidy. The risk of aneuploidy increases to 10.5-12% if other risk factors or ultrasound findings are noted.
I believe it was just the gestational sac. Then the following week at 6 weeks 1 day, my doc saw the yolk sacs as well on both babies (twins), and saw the hearts beating on the monitor. Ultrasound at 7 weeks showed their growth progress and we heard the hearts beating via ultrasound. So don't get discouraged. Every pregancy is different. So they may see the yolk sac and a heart beat next time you go for your ultra sound. Good Luck to you.
Week 6 - Gestational Age (Fetal age 4 weeks)
5 ½ to 6 ½ weeks is usually a very good time to detect either a fetal pole or even a fetal heart beat by vaginal ultrasound. The fetal pole is the first visible sign of a developing embryo. This pole structure actually has some curve to it with the embryo’s head at one end and what looks like a tail at the other end. The fetal pole now allows for crown to rump measurements (CRL) to be taken, so that pregnancy dating can be a bit more accurate.
Sounds like the growth of baby is progressing normally, the only thing I hadnt heard of either was the "tail". Below is a complicated quote that mentions the growth and then regression of the "tail" during early fetal development. Do you have a follow-up US to monitor things? Your HCG levels and observation of HB are very encouraging.
"the rostral neuropore closes and develops into the forebrain prominence and then the head.
m 6 weeks pregnant at the moment and i thought everything was going find until i got a call from my hospital telling me they needed to schedule me for an earlier appointment because when reviewing my ultrasounds they saw a problem with the fetus development. does anyone have any idea what this can mean? I would really appreciate it if you can help.
Recommended
Google 