Blac Chyna has announced she is pregnant.

The blonde beauty – who was previously engaged to Kylie Jenner’s current beau Tyga, with who Blac has three-year-old son King Cairo with – shared an emoji of herself with a baby bump via Instagram, which she captioned with baby face emoticons, which was also shared by the Arthur George sock designer.

A source confirmed the news to US Weekly, who said: "She's very happy.”

Meanwhile, The Kardashian/Jenner family have admitted they've noticed a significant change in Rob - who had turned into a recluse over the past two years – who has started to come out of his shell again and begin to enjoy life since being with Blac.

Speaking previously an insider said: "He's [Rob] never been this happy. The entire family is so happy for him and are over the initial shock of their relationship."

Rob was initially torn between his lover and his youngest half-sister Kylie, although the pair have now become friends.

Taking to his Instagram account late last month, the once-reclusive star uploaded a photograph of the former arch-enemies posing for a photograph together alongside the caption: "So happy my girls finally got to talk and make peace! #MyFamily #AllLove (sic)."