Andrew Huberman· PhD
The reason is there are a number of STIs-- in particular chlamydia-- for which it greatly increases the probability of miscarriage. So chlamydia is one of those very insidious and cryptic STIs because a lot of people, both males and females, don't even realize that they have chlamydia, and then they can carry chlamydia at the time in which they conceive, and then that can lead to ectopic pregnancies and/or miscarriages.