Will my pregnant cat come home from geting chase by a dog

my cat is a outside cat there was a dog coming down the street so I put her Inside so when just when that happened my sister opened the door and the cat ran out when the dog seen her he chased her into the tree moments later she was gone and never came back in 24 hours plus 9 hours pass. she is pregnant and if she goes into labor without help I don't know what to do we just got her and I don't know how long before she has her baby.
Asked Nov 12, 2015

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