a feeling of sadness that some women experience after they have given birth to a baby.

According to this article, as many as 60% of women suffer from the baby blues.

• in the red
• in the right place at the right time
• in the rough
• in the running
• in the saddle
• in the same ballpark
• in the same boat
• in the same breath
• in the same league
• in the same league as
• in the same league as someone
• in the same league as something
• in the scheme of things
• in the shadow of
• in the shadow of someone
• in the shadow of something
• in the short run
• in the short term
• in the soup
• in the strictest confidence
• in the strict sense
• in the teeth of
• in the teeth of something
• in the thick of it
• in the toilet