Prepregnancy counselling for diabetics includes an assessment of the metabolic condition,-and if present-angiopathy and nephropathy. Complications in previous pregnancies worsen the prognosis, particularly if they involve the kidneys. A case story is presented of a diabetic woman (White group F/R), who in her first pregnancy had shown several signs of increasing nephropathy. At the beginning of her third pregnancy her diabetes is badly regulated and her kidneys show signs of nephrosclerosis. Nevertheless, the pregnancy runs relatively smoothly until the thirty-third week where she delivers prematurely. The case story shows the difficulties in predicting the course of present and future pregnancies in a diabetic with angio- and nephropathy.