We have "adopted" (or she has adopted us!) a stray pregnant cat who has been hanging around our house for a little while. She is now inside and safe and happy as can be. Constantly purring and very affectionate. However, the past couple days we have noticed a slight discharge from her vagina. It is tinted pinkish. It has not been coming out constantly, but she gets a few drops every now and then. She generally cleans it up when it starts to come out. We took her to the vet last week when we got her in the house and the vet said she was about a week away from giving birth and seemed otherwise very healthy (except for a cold she had from being outside in the constant rain). Is this a normal thing to happen before the birthing process? She doesn't act sick/unhappy at all.