Pregnancy in cats can last for 63 days. If she is showing signs of labor then brown discharge can be indication of start of true labor, otherwise, brown discharge is not good signs during pregnancy of cats. You should note following signs and if present then she will have kittens very soon.
1. Reduction in temperature below 99 F
2. Breast enlargement
3. Milk production
4. Changes in behavior
5. Nesting behavior
6. Frequent visits to nest
7. Licking of genitalia
8. Restlessness and pacing
1. Reduction in temperature below 99 F
2. Breast enlargement
3. Milk production
4. Changes in behavior
5. Nesting behavior
6. Frequent visits to nest
7. Licking of genitalia
8. Restlessness and pacing
