All you need is regular dosing of multivitamins and calcium and minerals (iron etc) with high protein diet. Get your hemoglobin
checked if it could be due to anemia (most common cause).
in early weeks the body responds in different ways to changed hormone levels in blood also producing wage symptoms, early morning vomiting
, weakness , dizziness
etc in addition to vague aches and pains,numbness , tingling in limbs etc.