But, according to local consensus, one in particular is a must-visit: an unpretentious stall called Tian Tian, in the very workingclass Maxwell Road Hawker Centre on the outskirts of Chinatown.

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The tests will give an early indication of when Tian Tian's hormones will be at their peak for mating.

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An ultrasound scan will be needed to confirm whether Tian Tian is pregnant.

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