Many people struggle with dizziness early in pregnancy. Dizziness is usually a sign that your blood pressure is lower than usual. This is completely normal, because the cardiovascular system must first adapt to the new situation. During the second and third trimesters, the uterus presses on blood vessels and blood cannot flow freely. Again, dizziness can be a result. Dizziness is an unpleasant side effect of pregnancy. As a rule, however, there is no particular cause for concern. If you feel dizzy, first try lying down and putting your legs up a little higher. In most cases, the dizziness then goes away. To be on the safe side, you should contact your gynaecologist or midwife if you experience this discomfort for the first time or if it does not go away after lying down. Iron deficiency, pregnancy anemia or a thyroid disorder can also cause dizziness.