Hi Dear , As per your query your are in 8th week of pregnancy and you are experiencing dizziness and chest pain . Well these are normal events during pregnancy ,so there is no need to panic . As far as dizziness is concerned it occur because of low blood pressure. This happens because the pregnancy hormone progesterone relaxes the walls of your blood vessels, causing your blood pressure to fall. But there can be other reasons also like stand up too quickly, lie down for too long or haven t eaten for a while . As far as chest pain is concern it occur due to discomfort in your chest might just be your growing uterus pressing against your diaphragm. But if it’s more of a burning sensation, acid reflux or heartburn might be to blame . It is normal until it is discomfort , if it is a true pain the your should consult doctor . I symptoms you mention in query go beyond certain level then consult gynecologist . Hope your concern has been resolved. Get Well Soon. Best wishes, Dr. Harry Maheshwari