Stars, they're just like us!

</div>Most of these famous ladies are used to reading (or singing) lines, but they certainly weren't prepared for those pink lines on a positive pregnancy test. Take minted mom-of-two Kate Hudson, who admitted she and her fiancé Matthew Bellamy were "tempting fate" when they conceived their baby boy Bing. And Kate isn't the only mama who came clean about her improvised family planning. Meet some of Hollywood's most pleasant surprises.




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The “Not a Girl, Not Yet a Woman” singer became a mom to first son Sean Preston just a year after her infamous wedding to backup dancer Kevin Federline. But while her first baby boy was more or less planned (at least, a newlywed Britney gushed that she couldn’t wait to start a family), the pop princess came clean that she wasn’t expecting her second son — at least, not so soon. Her back-to-back boys were born only a year apart. Talk about “Oops, I Did It Again”!

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Parenthood definitely wasn’t in the plans for Nicole and her now-husband Joel Madden: The pair welcomed their first child, daughter Harlow, a mere year after they started dating (so yes, they were pregnant three months into their relationship). But the former wild child and her rock star beau certainly found their fit as parents. Since Daddy Joel has admitted, “We let love plan our babies,” it seems that the birth of their second child, son Sparrow, was also somewhat of a surprise — and it wouldn’t be too much of a shock if Nicole ends up pregnant again soon.

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The adorable Warren clan may be a celebrity-family staple now, but they certainly weren’t planning on becoming parents when the then-unhitched pair discovered they were expecting. The Warrens wed in a quiet ceremony just three months before daughter Honor’s arrival. But despite the rush, Jessica claims that Cash maintained the romance — the actress admitted she cried at his Christmas proposal, though it wasn’t that hard to do with her pregnancy hormones in high gear.

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Fertility may run in the Simpson family! After confirming her engagement to Fall Out Boy bassist Pete Wentz in April 2008, Ashlee became a bride that May and confirmed her pregnancy just two weeks after the ceremony. The pair’s first son, Bronx Mowgli, was born in November. And while Ashlee’s probably not due to be a mom again anytime soon (she and Pete split in 2011), she’s sure to have some mommy words of wisdom for her sister Jessica, who became a first-time parent in April 2012.