Your doctor may restrict sexual activity if unexplained bleeding occurs, if there are signs of possible miscarriage or early labor, if your water has broken or if you are carrying more than one child and are in the last trimester. Pregnant women may keep working, unless the pregnancy has health risks, or unless their job exposes them to hazardous materials or situations. If your job requires physical labor, move carefully. If you sit all day, try a pillow to support your back, and take frequent breaks to stretch. Ask your doctor first.
Most travel is fine during pregnancy.
Use your care seat belts, and don't travel alone at night or in remote areas. Flying is usually all right until the last month of pregnancy. Ask your doctor for the name and number of a doctor in the area where you will be traveling.