If you suspect your child may be depressed, look out for low mood and unhappiness with tearfulness or irritability that aren't related to a specific cause.
It is estimated that between 50 and 80 percent of women suffer from the "baby blues" after giving birth, which may include feelings of anxiety, irritation, tearfulness, or restlessness.
However, people who suffer postcoital dysphoria typically experience melancholy, tearfulness, anxiety, irritability or feeling of restlessness immediately after intercourse.