600 pregnant women will be included in the project and followed in a standardized manner during their pregnancy. On a regular basis blood- and urine samples will be taken throughout their pregnancy and until 1 month after delivery and analyzed for a large variety of coagulation factors in order to identify factors that might predict an increased risk of developing pre-eclampsia and/or cardiovascular events. In addition a DNA-sample is taken if consented in order to evaluate genetic factors.