can, but you have to go to your doctor to get a "Fit to Fly" memo for the airline staff to check. you also have to contact the airline to ask them what is their gestational age limit for pregnancy (eg. some airlines might not accept after week 34 of pregnancy). https://www.healthhub.sg/live-healthy/can-you-still-travel-while-pregnant#:~:text=In%20general%2C%20most%20airlines%20allow,turned%20away%20at%20the%20airport.