How can you tell if your 6 month old dog is pregnant?

To determine if your 6-month-old dog is pregnant, look for signs such as changes in appetite, increased affection or nesting behavior, and potential weight gain or abdominal swelling. Additionally, you may notice changes in her nipples, which may become larger or darker. A veterinary examination is the most reliable way to confirm pregnancy, so consider scheduling an appointment if you suspect she might be pregnant.