Yes, you can but it depends how many weeks you are pregnant. Also, different airline has different rules. You better check with the airline you want to fly with. If you are having twins, it will be different too.
Birth 15/3: W:4.2kg L:52cm HC:37.5cm
Day 09: W:4.37kg L:55.5cm HC:37cm
Day 46: W:7kg L:62m HC40.5cm
Day 82: W:~9.2kg L:~66cm
Day 112: W:~10.4kg
i went to the UK when i was 2 months pregnant. didnt have much problem apart from the fact that the seat was uncomfortable n didnt sleep much~!! but i made it thru alrite!
ur allowed to take the plane up until ur 7 months pregnant. just as long as ur sure that ur up for all the travelling, physically n mentally!!