Pippa Middleton is reportedly pregnant with her first child.

The younger sister of the Duchess of Cambridge, Pippa Middleton, is reportedly pregnant with her first child at 34, according to The Sun on Sunday.

Middleton and her husband, 42-year-old financier James Matthews, are said to have shared the news with close family and friends last week after their 12-week scan.

The baby is reportedly due in October.

A friend told the publication that Pippa’s sister Kate was the first person to learn the news after Matthews. Kate is due to give birth to her third child in a matter of weeks.

Middleton and Matthews were married in May last year, and Middleton was said to be excited to start a family.

The news comes just weeks after James’ 28-year-old brother Spencer Matthews, best known for starring in Made in Chelsea and I’m a Celebrity, confirmed he is expecting a baby with his 32-year-old fiancee, Vogue Williams.

It has, however, come at an uncomfortable time for Middleton and Matthews, after Matthews’ multimillionaire father David, 74, was arrested for allegedly raping a minor in the late 1990s.

He was released on bail earlier this month, and denies the allegations.

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