Many pregnant women complain about calf cramps and vague abdominal pain that can occur as a consequence of magnesium deficiency. Other magnesium deficiency symptoms are strong palpitations and exhaustion. All of them are not, as such, a reason to start worrying yet, but you should nonetheless listen to your body’s signals and possibly undergo a test for magnesium deficiency. If strong magnesium deficiency occurs during pregnancy, a contracted womb cannot relax any longer. Consequently, there are cramps that could trigger premature contractions – and lead to premature delivery in serious cases. When there is magnesium deficiency the balancing effect on the cardiovascular system ceases and the risk for pregnancy hypertension rises. In addition, magnesium deficiency is also suspected to be responsible for the onset of preeclampsia and the intensification of pregnancy nausea.