Be sure to let your dentist know if you are pregnant or could be pregnant. If your dental program requires a radiographic examination, then do not worry because the dose of radiation and the risks for the unborn child are extremely low. In fact, failure to treat oral disease may do more harm.

According to the National Health and Medical Research Council, dental radiographic examinations can be done during pregnancy provided that precautions are taken to limit the foetal explore to X-rays by the use of a lead apron. 

If you are thinking of having a baby, it is a good idea to have a dental examination done before you become pregnant. In this way, would will reduce or avoid the need for a dental X-ray examination during your pregnancy.