You are also at the lowest risk for spontaneous abortion or premature labor. During the third trimester (25 to 40 weeks), many healthcare providers and midwives advise staying within a 300-mile radius of home because of potential problems such as high blood pressure, phlebitis, and false or preterm labor.

The number of months you "cannot travel" is entirely dependent on your personal health, visa status, or specific airline policies regarding pregnancy or medical conditions. For most people, there are no "forbidden months," but for pregnant travelers, many airlines restrict international travel after the 36th week (the 9th month) to avoid in-flight births. In 2026, some countries with strict seasonal weather may have "travel dead zones"; for example, parts of Southeast Asia are difficult to navigate during peak monsoon months (typically August and September), and certain remote Arctic regions are inaccessible in the deep winter months of December and January. If you are on a specific visa, like a U.S. H-1B or a UK Skilled Worker visa, you may have "restricted months" where you cannot leave the country while a status change is pending. For most vacationers, "cannot travel" is a financial or professional constraint rather than a legal one, but always check your passport's expiration—if you have less than six months remaining, many countries will effectively "ban" you from entering until you renew the document.