I'm 4 weeks 4 days pregnant, i am low in magnesium for so i've been having pvc's. how dangerous this could be for the baby or myself? thanks.

Depends: Magnesium levels drops slightly in most pregnancies. Mildly low magnesium usually doesn't cause a major problem for you or your baby and its easy to resolve with magnesium supplements. A more severe magnesium deficiency can be serious because you can have heart beat arrhythmias, abnormalities of calcium metabolism and neuromuscular problems like seizures and coma that are life threatening.

Yes : As a baby develops in an woman you want the blood supply to the uterus to be optimal of course if the blood supply to the uterus is interrupted this could lead to depriving the baby of oxygen and nutrients it is important for a mother to be hemodynamics that are stable. Your electrolytes should be in normal range because this may also affect the baby.