1. Increased weight: As the pregnancy progresses, your hamster will likely gain weight due to the growth of the fetuses and the increased size of the uterus.
2. Increased appetite: Pregnant hamsters may eat more food than usual to support the demands of the growing fetuses.
3. Behavioral changes: Pregnant hamsters may become more territorial or aggressive towards other hamsters. They may also spend more time nesting and building a comfortable place to give birth.
4. Physical changes: The hamster's belly may become noticeably swollen as the fetuses grow. The nipples may also become larger and darker in color.
5. Nesting behavior: Pregnant hamsters will start building a nest out of bedding material, torn-up paper, or other soft materials. They may also become more protective of their nest as the due date approaches.
If you suspect your hamster is pregnant, it is important to take her to the vet for a proper check-up and to ensure she is receiving proper care during this time. The vet can confirm the pregnancy, provide guidance on nutrition and housing, and assist with any potential complications that may arise.