A cryptic pregnancy is any pregnancy not detected until after 20 weeks. Some women aren't aware they're pregnant until they go into labour. In this case, the cryptic pregnancy could be 40 weeks or longer. That means a cryptic pregnancy can last between 20 and 40 weeks.

How do you know if you are having a cryptic pregnancy?

Cryptic pregnancy is a pregnancy that goes undetected or unnoticed, so there may not be any typical pregnancy symptoms like fatigue, nausea and vomiting, missed periods, and abdominal swelling.

How long can pregnancy hide itself?

According to medical research, the state of denied pregnancy is not uncommon. In about 1 in 475 pregnancies, women are unaware of pregnancy until 20 weeks gestation or longer. 1 This means that this occurs more often than Rh disease and some other conditions we think of as fairly rare.