Although pregnancy can be a joyful and exciting time for a lot of people, it can also be a stressful and even scary time for many others.
The reasons for this vary from person to person, but a significant factor in these anxieties comes down to just how unpredictable pregnancies are. There are rare complications that can seem unthinkable until they actually happen and some people's bodies have unique traits that only reveal themselves during pregnancy.
For instance, some conditions like a tilted uterus can make some women unaware that they're even pregnant until they're close to giving birth.
But some of these rare possibilities are even more startling than that as they can actually threaten the lives of women when either they or the doctors they see don't pick up on them.
And as we're about to see, even doctors who are in tune with these possibilities can still be surprised.