Sally Humphreys covers up baby bump as she makes first pregnancy outing

Ainhoa Barcelona

Making her first high-profile appearance since the announcement of her pregnancy, fans were hoping to catch a glimpse of Sally Humphreys' baby bump. But the theatre producer showed no signs that she is expecting twins with her husband Ronnie Wood as she stepped out on Wednesday night.

The 37-year-old was attending a charity fundraiser in London with the Rolling Stones rocker. Joining the couple were the singer's ex-wife Jo and two of Jo and Ronnie's children, Leah and Tyrone.

While Sally kept her baby bump hidden under a black stripy top, there were a few telling signs that she is expecting. Her radiant glow and the wide smile she was sporting from ear to ear were two big clues that Sally is thrilled about becoming a mother.

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Ronnie and Sally Wood are expecting twins in June

At the family affair, the pretty brunette coordinated with her husband Ronnie, who also sported a dark ensemble. Once inside the Wave Makers: Fundraising concert at Scala, the 68-year-old musician changed out of his woolly jumper and into a white V neck T-shirt and glitzy blazer.

Sally and Ronnie, who married in 2012 after a whirlwind romance, made their announcement last week through a spokesperson for the band.

"Sally and Ronnie Wood are delighted to announce that they are expecting twins in June 2016," a statement read. "Needless to say, they are thrilled and overjoyed with the wonderful news."

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"I think Ronnie will be a great dad," Sally has previously told HELLO!

The birth is expected to be around the same time that Ronnie, who has secretly been recording a new album with the Stones, turns 69. Among the first to congratulate the couple was Ronnie's best friend and ex-Faces bandmate Rod Stewart, himself a dad of eight.

"Like myself Ronnie has a wonderfully large family," Rod told HELLO!. "So it's time to put the cue back in the rack. Penny and I wish them all the luck in the world."

Ronnie's ex-wife Jo wrote on Twitter: "Congratulations to me lovely X husband @ronniewood and his wife Sally @SallyWood. I'm thrilled for you both on the news of the new babes."

Ronnie and Sally knew each other for nine years before they started dating in 2012 – the same year that they married.

Shortly before the wedding covered exclusively by HELLO!, the mum-to-be said: "I would like to have children, but not yet. I think Ronnie will be a great dad. I've seen how good he is with his own children and grandchildren. He is the first one to pick up a baby."