Test and miscarriage
A sample of fluid taken from the womb can reveal a lot about the health of the unborn baby. This test called amniocentesis is ordinarily given between the 15th and 18th weeks of pregnancy and is used to detect genetic problems and birth defects in the foetus. Researchers at the University of Alabama at Birmingham uk , under the leadership of Cynthia Brumfield, found that the same test when performed between the 11th and 14th week of pregnancy hightens the risk of miscarriages. The test is usually offered to women above 35 and with a history of children with birth defects.