Pregnancy Celebrity news Pregnant Christina Aguilera, Kourtney Kardashian and Natasha Hamilton show off their bumps Celebrity pregnancy round-up - bikinis and tight-fitting dresses for mum-to-be stars 1 of Ad break Kourtney Kardashian - at 3 monthsKourtney kept the announcement of her third pregnancy a secret, ready for the big reveal on the season premiere of her family's hit TV show, Keeping Up With The Kardashians. However, she isn't hiding the news anymore and has proudly displayed her bare bump on Instagram. The reality star looked carefree (2nd from the left) as she showed off her 3-month bump in a two piece khaki-coloured string bikini. She and several girlfriends posed for the camera as they jumped into the pool at Kourtney's California home. This will be the third child for Kourtney and her long-term partner Scott Disick - who already have Mason, 4, and Penelope, 1. Photo: Instagram/Kourtney Kardashian Natasha Hamilton at 5 monthsIt seems that Natasha Hamilton can't wait to become a mum for the fourth time, as the 31-year-old singer has been sharing several snaps of her growing baby bump on Twitter. The Atomic Kitten singer, who is reportedly 5 months pregnant and due this October, is expecting her first child with boyfriend, 5ive singer Ritchie Neville. The pair got together while filming The Big Reunion. Natasha took a make-up free, bikini-bump selfie as she enjoyed the sunshine over the weekend. She tweeted "absolutely loving this weather, paddling pool out, kids having a ball, in tummy very content x" In the second shot, Natasha shows off her summer maternity style in a floaty white top, which rests over her bump nicely. "A very comfy, casual maternity look today. Tummy getting really big now, think I've made a good home for my daughter," she wrote on Twitter. Photos: Twitter/Natasha Hamilton Christina Aguilera at nearly 8 monthsNot long to go! Pregnant Christina Aguilera took to Twitter and Instagram to share a snap of her blossoming bump. In the picture, she's posing with some Eos mint lip balm and telling her followers to 'keep those lips hydrated!' The 'Beautiful' singer confirmed her pregnancy in February, but has yet to share her due date with fans. It's believed she's around 7.5-8 months pregnant and is expecting her new arrival in the late summer. We also know that Christina and her partner, film producer Matt Rutler (pictured left), are having a girl. The mini Xtina will be a little sister to Christina's 6-year-old son from a previous marriage, Max. Photo: Instagram/Christina Aguilera By Elizabeth Atkin Comments Latest on MadeForMums Why e-books might be better for your toddler than paper ones Toddler wets herself after being blocked from using toilet on plane Could these be Beyonce and Jay-Z's twin baby names? 30 hours of free childcare - will my child get it and how to apply?