Usually, provided you have followed our detailed instructions with regards to hydrating yourself and you are coming in during the recommended time frame. However, on occasion, your baby or the placenta may be in a difficult position which can affect the clarity of your images. If the baby is in a difficult position and we cannot see your baby, we will invite you back for another session. Our goal is for you to leave our office with the absolute clearest images the industry can provide! Water, water, water!!!