Acute hypokalaemic paralysis complicating pregnancy presents a unique challenge and an uncommon phenomenon, and when it occurs, presenting symptoms can range from mild to life-threatening ones. This condition occurs in the presence of severely low levels of potassium and precipitating factors can be congenital or acquired. An important acquired factor related to pregnancy is hyperemesis gravidarum. This case report centers on a 31-years old primigravida at about 22 weeks gestation, who presented with progressive bilateral lower limb weakness over a period of 4 days, with a background history of previous management for hyperemesis gravidarum in our facility at 11 weeks and several episodes of vomiting in index pregnancy managed at private facility. Potassium level at presentation was 1.25mmol/l. Following a diagnosis of acute hypokalaemic paralysis, she had potassium replacement and the presenting symptom improved with correction of the potassium. Her pregnancy progressed to term and she was delivered of her baby with no adverse events recorded. Early diagnosis and prompt institution of care are important for a good outcome when faced with acute Hypokalaemic paralysis complicating pregnancy