A method of sampling chorionic placenta-tissue from which placenta will be formed, which has the same genetic structure as the foetus. This method is controlled via ultrasound – through pregnant belly and at any moment you can see where are the foetus and placenta-tissue from which the sample is taken. It is done during the 10-14 week period.

Application of this method in under 10 weeks of pregnancy is not recommended because of increased occurrence of fetal limb deformities. After 2-3 days you will receive your fetal karyotype, which shows the structure of each of its genes as his gender.