Caption: Royal baby news: Kate is set to give birth three months before Zara It's an exciting time for the Royal Family as Kate, the Duchess of Cambridge, is also expecting her third child in April.
Zara and Mr Tindall's baby is believed to be due in the summer - around three months after Kate and William's third child is due.
Princess Anne's daughter has kept a relatively low profile since announcing her pregnancy in January.
But today was her second appearance at the races after she joined her husband Mike and mother, the Princess Royal, in Cheltenham on Tuesday.
The event is a favourite with the couple and champion horsewoman Zara, who has competed in the polo in previous years.
The British equestrian is patron of Magic Millions Racing Women which promotes racehorse ownership among women. Read more from EXPRESS.