If travelling when pregnant in a foreign land you could have complications with your pregnancy. The best plan for traveling while you are pregnant is Geo-Blue Voyager.
If you are travelling while pregnanat, and have been told by your physician that you are o.k. to do so, there are plans that will cover complications that might arise from your pregnancy during your trip. A pre-term birth in a foreign country can be expensive and scary. Here is an article about a situation that recently came up in the news, luckily it ended up having a positive outcome. Link to article
Here is the list of what is covered under the voyager plan:
Complications of Pregnancy are conditions, requiring hospital confinement (when the pregnancy is not terminated), whose diagnoses are distinct from the pregnancy, but are adversely affected by the pregnancy, including, but not limited to acute nephritis, nephrosis, cardiac decompression, missed abortion, pre-eclampsia, intrauterine fetal growth retardation, and similar medical and surgical conditions of comparable severity. Complications of Pregnancy also include termination of ectopic pregnancy, and spontaneous termination of pregnancy, occurring during a period of gestation in which a viable birth is not possible. Complications of Pregnancy do not include elective abortion, elective cesarean section, false labor, occasional spotting, morning sickness, physician prescribed rest during the period of pregnancy, hyperemesis gravidarium, and similar conditions associated with the management of a difficult pregnancy not constituting a distinct complication of pregnancy.
If you do NOT live in the USA, but are traveling to the US here is a plan that will cover you.
If you are looking for a plan that will cover the birth of your baby once you are already pregnant you will not find such a plan. Nor will you find a plan that will cover the birth of your baby if you travel to the USA, legally or illegally. These types of plans do not exist. But if you are just travelling while pregnant there are definitely medical health insurance plans that will cover many situations that may arise.