The Amniocentesis needle is usually around 7.4cm long and 0.8mm wide
Usually around two weeks, sometimes sooner.
By using a very long needle to remove a small amount of the fluid that surrounds the developing baby.
Amniocentesis is a procedure performed on pregnant women to determine possible risk factors with their developing fetus. A long needle is inserted through the abdomen into the uterus, being guided by an ultrasound, that extracts amniotic fluid. This amniotic fluid is then further tested to determine certain risks such as Down syndrome. Although amniocentesis does have it benefits of obtaining this kind of knowledge, it also poses threats to the fetus such as a .8% chance of miscarriage, clubfeet, trauma to the mother, preterm labor and an infection of the uterus. According to an article published in a Canadian journal, a study in Canada showed that amniocentesis performed between weeks 11 and 13, resulted in 29 out of 4,374 women gave birth to children with clubfeet. Because of this risk, doctors generally try to avoid performing amniocentesis before week 15 of pregnancy.
9 weeks
2 weeks
7-9 weeks. ;)
no actually its a few weeks.
40 weeks
2 to 3 weeks
a guinea pig is pregnant from 9 to 10 weeks
Do you mean how long they stay pregnant? if so its 9 weeks.
about 17 more weeks