Restless legs seem to bother a small number of women during pregnancy. It is the sensation of always having to move your legs. While you are sitting you may feel compelled to cross them, at night while you are trying to sleep, you may find it difficult to position your legs comfortably. You feel you must keep moving them. Restless leg is linked to iron deficiency in pregnancy. It is very important that you take your prenatal vitamins to help reduce the risk. Also the tendency for restless legs seems to be genetically determined. That is, you are more likely to suffer from restless leg syndrome if your father or mother had it. Fortunately, it almost always goes away after your baby is delivered.