During pregnancy, of course, sunbathing in the direct sun is not recommended for women, but if you decide to do so, you should definitely take a sitting position. A more advanced stage of pregnancy means that the fetus already has enough weight to be able to significantly push the internal organs of the mother while lying on her back. If you lie on your back in order to achieve a nice tan during pregnancy, you even risk pressing the vein that supplies blood to the heart, which can ultimately be fatal.\r