The smell of the horses! The small talk! Only other women who've been pregnant will appreciate how brave Kate Middleton has been today

With all eyes on Kate Middleton during her first public appearance since announcing her difficult second pregnancy – the Duchess of Cambridge deserves a medal for her composure.

The hair, the make-up and outfit were perfect – but spare a thought for poor Kate because behind the smiles, there was no hiding that all-consuming look of queasiness the Duchess had as she bravely stepped out for a major public engagement, without the safety of a sick bucket in sight!

Morning sickness is no joke – it can strike you at any time.

ANYTHING can set you off – normally mundane smells become overbearing, so imagine what the sight and smells created by the horses she rode in on might do to her? You could hazard a guess.

Yet, a delicate-looking Duchess of Cambridge, 32, today made her first public appearance since announcing she is pregnant with her second child, which is due in April 2015.

And it was not like she was popping to Sunday lunch with the family who already know she’s feeling fragile so she’d be able to relax, Kate was part of the state visit by the president of Singapore.

I can only imagine how difficult it must have been for her to make small talk with Mr President and his wife, when she felt she could go at any time…

Kate, who is around 13 weeks pregnant has been suffering with severe morning sickness hyperemesis gravidarum, just as she did with Prince George when she was expecting the first time around.

But perhaps she thought she was well enough to play a greater part in the official welcome for Tony Tan Keng Yam than initially announced.

Indeed, once she arrived at Buckingham Palace in front of the world’s press there was no going back. Ever the professional, Kate put her best foot forward and made her visitors feel welcome.

Yesterday, aides announced that the royal baby – a sibling for Prince George – is due in April and that Kate’s condition is ‘steadily improving’.

Judging by her look today though, perhaps she should sit the next one out …

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SEE PICTURES Baby Prince George‘s royal first year in pictures with Kate Middleton and Prince William