Pregnancy Overdue - Week 41+6

The project is a national, prospective, multicenter pilot project. The project is focus on setting up the combined first trimester screening in the Czech Republic. The combined first trimester screening is aimed at predicting and detecting the most serious obstetric complications, such as the great obstetrical syndromes (preeclampsia, fetal growth restriction, preterm labor and intrauterine fetal demise "IUFD") and structural congenital defects (morphological and chromosomal). The primary objective of the project is to create a unified methodology for performing and evaluating the combined first trimester screening in connection with the National Health Information System (hereinafter referred to as "NHIS"), which will enable recording, providing analysis and linking recorded clinical parameters with data in the NHIS. The pilot project will also provide data for modeling appropriate mechanisms for reimbursement from public health insurance.