Yes, it is completely normal to have visible veins on your breasts during pregnancy, especially around the 22nd week. As your body prepares for breastfeeding, increased blood flow and hormonal changes can cause the veins in your breasts to become more prominent. This is a natural part of the pregnancy process and should not be a cause for concern. However, if you experience any pain or discomfort along with the visible veins, it's always best to consult with your healthcare provider for further evaluation and reassurance.