Weightlifting during pregnancy can be safe and beneficial for many women, but it's essential to do so under the guidance of a healthcare provider and a qualified fitness professional experienced in prenatal exercise. Generally, if you were weightlifting before pregnancy and have a healthy pregnancy without complications, you can often continue with modifications as advised by your healthcare provider.

Benefits of weightlifting during pregnancy can include:

Improved strength and endurance: This can help with the physical demands of pregnancy, labor, and postpartum recovery.
Better posture and alignment: Strengthening core and postural muscles can help alleviate some common discomforts associated with pregnancy.
Mood enhancement: Exercise, including weightlifting, can help improve mood and reduce stress.
Prevention of excessive weight gain: Regular exercise can help manage weight gain during pregnancy.
Maintenance of muscle mass: Weightlifting can help prevent excessive loss of muscle mass during pregnancy.

However, it's essential to follow certain precautions:

Consult your healthcare provider: Always consult with your healthcare provider before starting or continuing any exercise routine during pregnancy.
Modify exercises: Certain exercises may need to be modified or avoided altogether during pregnancy, especially as your body changes.
Avoid heavy lifting: While light to moderate weightlifting is generally safe, avoid lifting heavy weights that strain your body, especially in the later stages of pregnancy.
Listen to your body: Pay close attention to how your body feels during exercise. If something feels uncomfortable or causes pain, stop immediately.
Stay hydrated and well-nourished: Make sure to drink plenty of water and eat a balanced diet to support both you and your baby's nutritional needs.

Ultimately, the decision to weightlift during pregnancy should be based on your individual circumstances, health status, and the guidance of your healthcare provider.