Depression is pretty common. They used to call it the “common cold of mental illness,” but I haven’t heard that lately. For a common condition, a lot of us don’t know what it looks like or feels like For that reason, and maybe some others, depression during pregnancy may go unrecognized.
Depression doesn’t look the same in every person. For some people, the symptoms are mostly disruptions of sleep, appetite, energy, and the capacity to enjoy life. For some people, depression will show up as flat or sad mood, thoughts of being guilty or worthless, or hopelessness. For some people, the most compelling symptoms is irritation. If you have become highly irritable, easily frustrated, unable to find pleasure in things that you have always loved, you might have depression.
Here is a link to a recent article about possible depression signs: