From the point of view of nowadays human-oriented concept, analytical instruments are launched for use with the safety of the instrument in mind. There is no problem to use in accordance with the operating procedures.
For pregnant women, it is not that they can not operate the instrument, but to protect themselves from a comprehensive perspective. In real life, cell phones, television, microwave ovens, light wave ovens have a small amount of electromagnetic radiation, spectrometers will also have a small amount of electromagnetic radiation. They will generally be within reasonable limits of national safety indicators. So it is right to protect yourself, but there is no need to talk about it.