# Women should refrain from traveling or taking long trips during the latter half of a pregnancy. If it cannot be avoided, planes and trains are the most comfortable and least exhausting ways to travel long distances. Most airlines, however, will not allow women who are more than 36 weeks pregnant to board flights. Moreover, it is not advisable for pregnant women to fly at high altitudes under low atmospheric pressure.
If travel involves a lot of walking, a woman should rest 15 minutes for every 2 hours walked. Take extra precautions when traveling by sea, and be aware of the increase in dangers, such as infections or dysentery, when traveling to a foreign country.
# When traveling by car, stop every 2 hours and walk or stretch for 15 minutes.
# If travel is necessary, choose a train over a bus, and avoid traveling in cars with heavy vibrations.
# If at all possible, refrain from traveling during the second and third months, and toward the end of the last trimester, when miscarriages are most likely to occur.