The Hills star Lauren Conrad expecting second child but hints it may be the last

The Hills star Lauren Conrad has announced that she is expecting her second child with her husband William Tell.Sharing the news on Instagram with her 6.1million followers, 33-year-old Lauren revealed that her 21-month-old son Liam, would be getting a sibling.The reality TV personality-turned-fashion designer and author posted a picture of her cradling her bump, captioning the snap: \"It\'s been hard to keep this one to myself! Very excited to share that our family will be getting a little bigger this year.\" Despite the happy news of an impending arrival, Lauren has previously revealed that she would most likely be stopping at two children.Speaking to People.com, Lauren revealed: \"I was looking at him the other day, and I was like, \'I understand now why people keep having babies!\' \"We\'ll probably have two.I think it\'s best not to be outnumbered.\" Lauren found fame when 18 in reality TV series Laguna Beach: The Real Orange County in 2004, before achievi