Leigh-Anne Pinnock, who is expecting her first child with her fiancé Andre Gray, has flaunted her blossoming baby bump in a stunning yellow bikini.The Little Mix star, 29, shared a sneak peek into her new summer swimwear range as she shared the glowing snap of her rocking the two-piece on her Instagram on Thursday.The pastel yellow bikini is from her In A Seashell collection and the beautiful snap shows the soon-to-be mum lovingly stroking her baby bump as she poses on a sandy beach.The bikini