Fetal Development

The size of fetus is 4 to 5 mm at 5 weeks pregnancy and about half an inch or 1.25 cm at 7 weeks of pregnancy. Fetus grows by geometrical proportion with time. So you can calculate the size of fetus at 6 weeks by mathematical calculation. Say the size be X mm at six weeks. So you have 4 mm, X mm, 25 mm in the series, So X squred equals to 4*25=100. X is equal to 10. So the size of the fetus will be 10 mm at 6 weeks.

Every woman is different. Although it is unlikely in first time mothers, do not completely rule it out. It could also be gas you are feeling.

Most first time Mums feel movement at around 20 weeks, and second time Mums around 16 weeks.

I dont think it honestly matters if you are a first time mom or not! If you understand what is going on with your body im pretty sure anyone can tell between gas and the baby, i dont know about other women because everyone is different but gas and the baby felt different to me. I am a first time mom and I felt my baby around 15 weeks. And after the first day of feeling the baby i felt it more and more everyday. So, it is possible.

Do you mean fetus? If you do, the bag-like structure is called the uterus. It is located in the woman's body. The uterus is a pear-shaped structure that contains the fetus when pregnancy takes place.

At 6 weeks post-conception, the fetus looks like a little blob - the spinal column has started to stand out and you might make out the eye sockets starting to fold back in. Otherwise, it looks like any vertebrate fetus and is not visually identifiable as human.

A 21 week old baby is a fully developed child that lacks the lung maturity to live outside the womb. From this point the child only needs to gain weight and lung maturity to be born if you go to a site at www.bible.ca/s-Abortion.htm you can see a 21 week old fetus having surgery in the womb to correct spinol bifida and the little boy has grabbed hold of the surgeons finger. It is adorable.

Update: First verified recorded 21-week old baby survives outside the womb: http://www.foxnews.com/health/2011/04/21/youngest-surviving-premature-baby-leaves-hospital/

The baby and the mother share the same blood stream, Whatever drug the mother smoke, snort, swallow, drink or inject gets into her blood, and from there over to the baby.

Everything, from glucose to vitamins to disposing of waste from the baby.

As pregnancy generally lasts 39 weeks, 27 weeks would be 27/39 of 9 months.

27/39 = 0.692 and multiplying that by 9 we get 6.23 - or 6 months 1 week

The weight is about 1 gram and it's 14-20 mm long so about the size of a bean. See link below.

I'm 8wk 5days. My fetus measures at 2.07 cm.

ive been looking for this answer online, i was exposed to a stong gasoline fumes twice last wee while on a small boat with an inboard motor, whiched caused a headache, nausea, and triggered asthma to act up. i was thirteen weeks, had previous great pregnancies. I ended up hemorrhaging and losing my baby.. coincidence?? my heart goes out to any women that goes through the loss of a baby in utero.. very sad

There is no feeling that comes with conception. Most conception actually happens a day or two after you have sex. Sperm, no matter how much you clean yourself afterwards, can live in the body for up to 3 days. Meaning you could have sex tonight and not be pregnant until tomorrow or the day after tomorrow.

My doctor is checking me at 7 weeks because it is usually detectable sometime between 6 1/2 and 7 weeks.

Umbilical cord.

A baby has a sex long before it is a fetus. at the moment of conception, all DNA the human will have (sex, eye color, hair color, all gentic traits like that) is already present at that moment. Of course, actual reproductive organs come much later, but embryos do have genders

Six weeks of what? Pregnancy? Well if this is the question i can answer... Everybodys body is different.. but when i was six weeks i had barely found out i was pregnant main reason sense of smell is real sensitive and food i liked before made me sick....

Fansidar 400 mg dosage of 4 tablet at one time can harm or even stop the fetus growth. cytopan 75 mg 3 times a day can harm pregnancy,

It's 12-17 days after the first day of your last period.

The fetus can excrete urine into the amniotic fluid but there is very little waste in it. The mother's body works to attend to the other exchanges. Because babies are not eating, there is no waste as we know it. Unborn babies in distress may pass meconium, a dark sticky substance which lines the bowel, and is usually passed in the first days after the birth but is different to feces.

Yes, it's definitely possible, no matter what anyone says. My midwife felt my little girl kick at 10 weeks, because she knew where to push down and what not. She's a strong little baby at 20 weeks right now but my boyfriend still hasn't felt it, but it can take a little time for a casual outsider to feel it.

Don't doubt yourself, if you think it's your baby, it probably is. :)

Embryo or Egg.

The heart beat should be detected on ultrasound by 7w. - but it depends on the ultrasound machine quality.

If there is no HB by 8w, the doctor will od the labs to see if the hcg levels are increasing. Good luck!

I knew I was having a boy at 14 weeks.

It's all dependent on how your baby is positioned. My sister wasn't able to tell what her first kid was because she (the fetus) had her legs crossed during the ultrasound. :-)

It's also a lot easier (for obvious reasons) to tell if it's a boy than if it's a girl.

I found out that I was having a boy at 15 weeks!!!! But it just depends on how the baby cooperates with the ultrasound tech.

The earliest a doctor will have a radiologist determine gender is about 12 weeks. Most wait until week 16 through week 20. Determining gender by radiology is not an exact science. A fetus could be in a position where it is difficult to see the genitals. Your radiologist may attempt to coax the fetus into another position where it is more visible. You could also consume something containing sugar, such as juice, (no caffeine!) which will make the fetus somewhat more active. Amniocentesis, if you must have one completed, is fool-proof in determining gender of the fetus through chromosomal testing.

No, I'm sorry if there is no heart beat there will be no baby. By 5 weeks there should be a detectable heart beat, by 6 weeks the heart beat can be heard with a transvaginal ultra sound scan.

If you are not certain when you conceived your doctor should order a blood hCG level with a repeat in about 3 days to determine if the hCG level is rising, a sign of a healthy pregnancy or dropping - a sign of a missed miscarriage.

The cells that have formed will either be absorbed and the lining will shed (much like a heavy period) or your doctor will perform a D & C to gently remove the tissue left in the uterus.