The American College of Obstetricians and Gynecologists recommends that health care providers screen for depression and anxiety using a standardized tool at least once during pregnancy. During screening, your health care provider will likely ask questions from a standardized screening questionnaire, which consists of questions about mood and anxiety. Your answers are scored and your total score can be used to identify whether you have depression. Alternatively, your health care provider might ask you if, in the past month, you have been bothered by feeling down, depressed or hopeless or by having little interest in doing things.
There is limited evidence that screening to identify and treat depression during pregnancy improves outcomes. This might be due to variations in access to resources and appropriate treatment once depression has been diagnosed. However, screening for depression during pregnancy might provide some self-awareness of your risk of depression and anxiety.
If you think you might have depression during pregnancy, don't wait for a screening. Talk to your health care provider about how you're feeling and work with him or her to determine the next steps.