Liam Hemsworth and Miley Cyrus haven't even walked down the aisle yet, but the actor is already planning for what comes after marriage: babies!

Liam's sudden baby fever is due to visiting a friend's newborn baby girl, "On the ride home, he wouldn't stop going on about Miley getting pregnant in the next year," an insider close to the couple revealed to In Touch. "Even the next day he refused to give up."

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Unfortunately, Miley doesn't share the same feelings, "She sternly told Liam she's in no rush to have kids and let it go," the insider continued. "He hasn't mentioned a word about it since."

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The on-and-off couple reunited just before the summer, and seemingly wasted no time resuming their engagement. Sources previously revealed to In Touch the couple's relationship has been rocky, as there's been talk of a lack of trust.

“[Liam] got angry with Miley because whenever he calls or texts, she doesn’t respond quickly enough," a source previously revealed, adding that Miley also has trust issues as well.

"She thinks Liam has been very flirty with other girls lately. She's accused him of flirting with waitresses, friends, even her older sister, Brandi."

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