When must I notify my employer of my pregnancy?

No legislation in the Czech Republic specifies the obligation or deadline to notify the employer of pregnancy. In general, it is recommended to announce pregnancy once it is already stable, i.e. after the end of the first trimester. Until you notify your employer of your pregnancy, legal measures to protect pregnant women do not apply to you.

If you are performing work prohibited for pregnant employees, you must inform your employer immediately upon learning of your pregnancy. Such work could endanger you and your unborn child.