No adverse fetal effects have been documented from normal therapeutic doses of hydroxocobalamin in human pregnancies
If you havent been taking vitamin B12 supplements for anything longer than a few months, you may want to start by taking 2,000 micrograms (mcg) of vitamin B12 once a day for two weeks to replenish your stores

VitaQIK Liposomal Vitamin B12 is a quick and easy way to help: Support healthy immune system function Support energy production Support nervous system function and health Assist healthy red blood cell production Assist protein synthesis in the body Assist metabolism of macronutrients Support blood health Suitable For: vegans and vegetarians Boxed Contents: 50mL Size: 50mL KEY FEATURES Support healthy immune system function Support energy production Support nervous system function and health Assist healthy red blood cell production Assist protein synthesis in the body Assist metabolism of macronutrients Support blood health Each 1 mL dose contains: Cyanocobalamin (Vitamin B12) 500 micrograms No added sulfites, soy bean products, wheat, gluten, yeast, animal products, milk derivatives, eggs, lactose, sugars, artificial colours and flavours
Conditions such as malabsorption or gastrointestinal disorders can hinder the absorption of B12 from oral supplements