As a general rule, all Tour Operators advise that up to 28 weeks of pregnancy you can travel as long as you have checked with your doctor. From one day over 28 weeks of pregnancy upon return and up to 32 weeks, you must obtain a doctors certificate stating how many weeks pregnant you are and your due date, It must also state that you are fit to travel. You should take this certificate with you to the airport as you mat be asked to produce it at Check-in. You must also check with your travel insurance company that you are covered under your policy. Over 32 weeks of pregnancy you cannot travel with any airline. All airlines advise that you check with them before booking if over 28 weeks pregnant.