My cat is due any day now but today I have notice that she has had some yellowish orangish discharge and slight bleeding this started at about 2 o'clock and it is now 5 hours later and there is no change what so ever.I was told when this happens usually the kittens come shortly after but this seems like it is taking a long time.Is there anything that I should be worried about and is this a normal and how long until i have kittens?