If you're pregnant and still want to travel, you'll need to know the rules for traveling while pregnant - which can vary widely between airlines, from "fly whenever you want" to even "you must fly with an obstetrician" (I'm not kidding).

TPG has written about: planning trips if you are hoping to become pregnant in the relatively near future, traveling during your first trimester, traveling during your second trimester and traveling during your third trimester. But - even though some babies born on a plane do score some free flights, that's probably the last place that most moms want to give birth.

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