Just two week after announcing her second pregnancy Charlotte Church is already fretting about piling on the weight, according to a new report.

After giving birth to her first baby, Ruby Megan, Charlotte famously struggled to lose the massive four stone in weight which she piled on.

And although the star is 'delighted' with the baby news, she is already dreading the thought of ballooning again, claims Closer Magazine.

Charlotte Church piled on four stone when she was pregnant with Ruby

To make things worse, the Welsh singer is apparently craving junk food and can't stop eating crisps, pizza and chips.

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Charlotte, pictured with Gavin, is determined to get her size 10 figure back quickly

And friends close to the star told Closer that far from being a 'gushy expectant mum', Charlotte is instead already talking about how she will lose the weight after she gives birth.

Sources told the publication Charlotte is devising a training plan for after her second baby is born to get her back to a size 10.

After Ruby's birth six months ago, Charlotte has only just managed to get back down to a size 12 by following a healthy diet, including fish, meat and lots of vegetables.

She has also been busy in the gym at her and Gavin Henson's £800,000 home.

But after her surprise news the star feels like she is back at square one and sources say that she is taking it on on her rugby star boyfriend Gavin.

The star is currently rehearsing for the new series of her Channel 4 show - The Charlotte Church Show.

However, the weight battle has not put Charlotte off extending her family even more.

She told TV show host Jonathan Ross last week that she couldn't wait to have more kids.

She said: 'I want between four and six kids and Gavin wants eight.

'I want all my babies young, and then I'm going to get married and look fabulous.'