👉Drink plenty of fluids.

Low humidity in the airplane could cause you to become dehydrated.

👉Buckle up.

During the trip, keep your seatbelt fastened when you are seated, and secure it under your belly.

👉Avoid foods and drinks that can cause acidity before you fly.

Gases expand during flight, and that could make you uncomfortable. Examples of foods and drinks to avoid include broccoli and carbonated soda.

👉Plan for your medical care.

Plan for how you'll get obstetric care during your trip if you need it. Bring copies of your medical information in case you need care while you're away.

Sources- mayoclinic.org