Breastfeeding while pregnant is generally considered safe and healthy for both the fetus and the older child. However, it is important to consult with your healthcare provider to ensure that it is appropriate for your specific situation. Some women may experience changes in milk supply or nipple tenderness during pregnancy, but these are usually temporary and can be managed with proper support and care. It is also essential to maintain a balanced diet, stay hydrated, and listen to your body's signals of fatigue or discomfort. Your healthcare provider can provide guidance on any potential risks or concerns based on your individual circumstances.