White discharge from pregnant kitty

Question
Olive is approx 63 days pregnant, and a couple of days ago, I noticed a thick white discharge.  I have read MANY things on this, but cant seem to come to a conclusion.  Her temp is 99.4.  She is not in any pain, but very clingy.  I can still feel the kittens move in her belly, so I am not worried about stillborn.  I am mostly curious about what the white discharge means.  If you can help, that'd be great.  Thanks

Answer
Karey,

The mucous like, often bloody discharge is her "plug" and can come as much as a week before kittens are ready to be born up until the onset of birth. If her temperature has dropped like that, kittens are imminent. She may have had them by the time you get this answer!

Please let me know how she does.

Best regards... Norm.