Pregnat stray Bleeding some

Question
I have a pregnant stray that found us I do not know for sure how far along she is but she is huge in the tummy area. I have found some blood spotting in our tub from her a couple of time over the last weeks and am not sure if this is normal.
How do you know when the labor is going to start or if she is way over due and there may be a problem?
Thank you for any help you can give.

Answer
Hi Louise, It is not normal to see a discharge until the cat is starting labour. A discharge over the past couple of weeks could indicate a problem with one of the kittens. Are the kittens still moving and active? Is mom eating and drinking ok? Does she have diarrhea? Does the discharge smell? Is mom meowing and crying? can you write me back and I will try to help you a bit more.
Teresa