Has your gynecologist given you the go-ahead to keep moving? Well, walking is pure gold during pregnancy, super safe and keeps you in shape without stress. Swimming and prenatal yoga are amazing because they don't strain your joints and plus they prepare you for labor. You can keep lifting weights but go easy on the intensity - don't lift heavy stuff or do exercises lying flat on your back after the first trimester, and forget about running at a hard pace because the impact and balance changes aren't ideal right now! What matters is that you listen to your body, don't do movements that leave you out of breath, and if you ever feel dizzy or pain, you stop everything and check with your doctor!