Fetal Development

it may be possible to tell the baby's gender at the 20 week ultrasound but then it just depends what position the baby is lying in.

This condition is called Placenta Previa. With placenta previa, the placenta grows on the lower part of the uterus partially or totally covering the opening of the cervix. The placenta should form at the top of the uterus, above the baby. With a normal pregnancy, the baby would be born first, then the placenta. With placenta previa, the placenta would be delivered first. Women with placenta previa require a c-section because as soon as the umbilical cord comes into contact with oxygen, the baby will automatically breathe with his lungs. Delivering the placenta first puts the baby at risk of suffocation in the womb.

The remnants of the fetal opening between the right and left atria is referred to as the foramen ovalis. This is the opening during the fetal life and referred to as remnants due to the opening closing soon after birth.

Well the heart develops and begins beating around week 5 and can usually be detected around week 6 1/2-7. If you doctor doesn't feel that this is an issue then it is probably fine. Sometimes gestational age is miscalculated or the fetus might just be a little behind. If you do not feel that your doctor was concerned when you were, then you might try finding a different doctor. When you call to make an appointment, be sure to explain to the receptionist that you are "X" weeks pregnant, had an ultrasound at 7 weeks and there was no heartbeat and you would like a second opinion to make sure things are still going smoothly.

yes you can have a miscarriage without the cervix dilating. its usually an early miscaragie <4 wks. I had a miscarragie at around 3 wks and my cervix never dilated per my gyno. my hcg blood levels where 290 so i was pregnanct and miscarried.

Low down, under you belly button! (It's awesome the first time!)

The normal fetal heart rate is 110-160. A constantly high baby heart rate is typically associated with an elevated temperature in with the Mom. That being said a baby's heart rate can and should go about this range periodically if it is healthy. If you have a temperature you should consult your physician immediately to rule out harm to the baby.

It functions the same before and after birth, to conduct urine from the bladder to outside the body for elimination. Urine is developed in fetuses when the baby swallows amniotic fluids and as fluids are provided via the blood from the mother.

The urine that is released in utero combines with the other wastes and fluids in the amniotic fluid and is critical for maintaining the necessary fluid levels in the amniotic sac so that the fetal lungs will properly develop. If there is an obstruction of the urethra that prevents the urine from flowing into the amniotic fluid, the fluid level in the sac can go too low and the lungs will not properly develop, and the kidneys and urinary system can be severely damaged by the obstruction.

They develop by feeding from the yolk of the egg that the frog has laid and that is the equivalent of a placenta.

Some people can by their third pregnancy because they know what the feeling is like. It's not unusual, although it is also possible that it may be because you are slightly further on than you though you were

A fully formed miniature human being who basically needs 12 more weeks to put on fat, and brain/nervous system continue to mature, but 28 weeks is the magic number where, if born,would have excellent chances of survival.

Some people think that the fetus starts out as a girl and then grows into a boy or stays a girl. They're wrong since embryos are genotypically a boy or a girl at the time of conception. The chromosomes they inherit make them either XX(girl) or XY(boy). Because a female is XX, she will always contribute an X chromosome, but because a male has both, X and Y (XY), the male could either contribute an X chromosome or a Y chromosome. Therefore, the males determine the sex of the baby.

That would depend on what you mean by "a lot." Considering the fact that the baby has almost no room to move at 39 weeks, decreased movement is normal. Complete lack of movement is not. If you are concerned, go to your doctor and have him/her listen for the heartbeat.

The splitting of the cells causes growth inside the womb. Another cause for growth in the womb is good nutrition. Many doctors will prescribe special vitamins to enhance a baby's chance for survival without defects of the fetus.

Yes, a fetus is a baby. Not one hundred percent developed, however. One definition of a Foetus is an unborn or unhatched vertebrate in the later stages of development showing the main recognizable features of the mature animal.

I saw my baby's heart beat via ultrasound at 14 weeks and 3 days

Aspirin-based pain relievers are a cause for concern because of the possibility, though rare, of interaction with viral activity to cause Reye's Syndrome, a serious disorder that can lead to brain and liver damage. The AAP pediatrician group recommends not giving aspirin to children or infants where fever is present, except as prescribed by a physician.

Implantation can start to occur as soon as 6-10 days after retrieval (I use "after retrieval" because embryos can be transferred on different days of development. Count the retrieval day as day 0). Five days after the retrieval a healthy embryo will have reached the blastocyst stage. Six-seven days after the retrieval, a healthy embryo will start breaking out of its hard outer shell and begin the implantation process. After the healthy embryo has implanted in the uterus it will not start secreting hCG for several more days. You will probably not be able to feel the implantation process.

Most breeds are fully feathered by two months old and ready to lay at 5 months.

This will vary by breed. A young hen before she reaches one full year is called a pullet.

Hens are usually on the down side of prime egg production by 24 months.

See link provided for chick growth pictures

First, the penis must be inserted into the vagina. The penis will release the sperms (male sex cell) into the womb. Then, the sperm meets the egg (female sex cell). Then, they fuse together. The fertilised egg starts to divide to make more cells. It attaches itself to the wall of the mothers womb and continue to develop and grow. Soon, organs begin to form and the baby gets its nutrients from its mother through the umbilical cord. About nine months after fertilisation, the baby is born.

Here is a link to a great website with photos showing the baby's development from week to week!

after the gestational age of 12 weeks, all baby's develop at different rates. i would assume your baby would probably be between 1-2 pounds, but could be bigger or smaller based on your lifestyle (smokers have smaller babies) and health factors (women with diabetes have larger babies, women with IUGR (intra-uterine growth retardation - a medical condition where the baby's growth is restricted while in the womb) tend to have little infants. the best way to estimate the size of your infant is to have your doctor perform an ultrasound (keep in mind the ultrasound is not always accurate - it's just an estimate) hope this helps.

actually they have a lot of fun in there. they sleep and when they arent they kick and stretch its a miracle it really is and they also grow and go through different stages

ThE baby has died.

Sometimes you can feel the baby dropping, especially with your first. It gives a little wriggle and a squirm and you suddenly need to urinate. With a second and subsequent baby it often does not drop until you go into labor.