amniocentesis is the withdraw of amniotic fluid in
a) menopause
b) lactation
c) gestation
d) pregnancy

Amniocentesis is a procedure that is carried out during pregnancy. The most common reason for a pregnant woman to be offered amniocentesis is to see if her developing baby has a chromosome disorder such as Down's syndrome.

Amniocentesis is usually offered after 15 completed weeks of pregnancy (usually between 15-18 weeks).