It is not uncommon for women to experience spotting or light pink blood when wiping after using the bathroom during the 6th week of pregnancy. This can be caused by a variety of factors, including implantation bleeding, hormonal changes, or cervical irritation. In most cases, this type of spotting is considered normal and does not pose any significant risk to the pregnancy. However, if you are experiencing heavy bleeding, severe cramping, or have any concerns about your symptoms, it is important to consult with your healthcare provider for further evaluation and guidance. They will be able to assess your specific situation and provide appropriate advice based on your individual circumstances.