Summary: When it comes to pregnancy, there is a folk saying that you are not allowed to reveal pregnancy news to relatives and friends before three months of pregnancy, saying that it is a \”small air fetus.\” No basis? When it comes to pregnancy, there is a folk saying that you should not disclose pregnancy news to relatives and friends before three months of pregnancy. They say fetuses are stingy. If it is said to be bad for yourself and your fetus, is there any basis for this statement? In the early stages of pregnancy, the fetus is prone to miscarriage. 80% of unintended miscarriages occur within 3 months of pregnancy. If the fetus is stingy in the first 3 months of pregnancy, it is best not to talk about it everywhere. Although this folk saying has no scientific basis, it reflects an objective phenomenon, because it is easy to be pregnant for three months.