It is generally safe for you to sweep and mop the floors at 8 weeks pregnant. However, there are a few precautions you should take to ensure your safety and the well-being of your baby. First, make sure the cleaning products you use are non-toxic and do not contain harmful chemicals. If possible, opt for natural cleaning solutions. Additionally, avoid heavy lifting or excessive bending while performing these tasks to prevent strain on your body. Take frequent breaks if needed and listen to your body's signals. If you experience any discomfort or pain while sweeping or mopping, stop immediately and rest. It is also important to maintain good ventilation in the area where you are cleaning to minimize exposure to fumes. Lastly, if you have any concerns or underlying health conditions, it is always best to consult with your healthcare provider before engaging in any strenuous activities during pregnancy.