Pregnant Cat, Blood in stool

So I noticed yesterday that my pregnant cat that is due in about a week or so is bleeding. It looks like she is bleeding in her stool but I can't really tell. When she uses the bathroom is the only time I notice the blood. Does anyone know if this is normal or is something wrong? I would appreciate any help or advice.
Annette

Sounds like somethings wrong. I'd have a stool sample checked for parasites.

Has she been constipated or straining at all in the litter box that you know of? I agree with taking in a stool sample to the vet - it is always better to be safe than sorry.