Xác định giới tính của hamster. Nghĩ xem hamster cái của bạn có từng ở gần hamster đực không. Xét tuổi của hamster. Loại trừ các bệnh lý. Quan sát phần bụng phình to của hamster. Quan sát hành vi làm ổ. Để ý hành vi tích trữ thức ăn. Chú ý các dấu hiệu cho thấy hamster sắp sinh. Đem hamster đến bác sĩ thú y.

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It might seem obvious, but like humans, only a female hamster can become pregnant. Most people will already know the sex of their hamster, but just in case you don’t, visit How to Sex a Hamster for more information on determining whether or not your hamster is female.  Gently scruff your hamster (hold it by the loose skin just above the shoulders firmly but without pinching), and turn the animal gently over to check its sex. Males will have prominent testicles just around the tail that make their rumps bulge, whereas females lack this and instead have much more prominent pairs of nipples on the underside. If you’ve always simply assumed that your hamster is female because it had a typically female name when you bought it, then you should probably check. Note that if you think your hamster is pregnant due to a swollen belly, then she’s already to a part of the pregnancy where you should refrain from touching her due to the stress handling causes in the late stages of pregnancy. The average length of a pregnancy for a hamster is 15-21 days, so your hamster would need to have been housed with a male hamster within roughly the last three weeks in order to be pregnant. If she hasn’t had company in more than four weeks, then she cannot be pregnant. Hamsters can start breeding from as young as 6-7 weeks of age. The only way to rule out pregnancy due to sexual immaturity of the hamster is if she is even younger than six weeks. This also means you need to be careful storing hamsters from a litter together once they approach six weeks old because they will start mating together. This includes any male hamsters with the mother. A swollen belly alone isn’t nearly enough to identify a pregnant hamster. A swollen belly can actually be a sign of another illness or condition affecting your hamster. Possible illnesses that may result in a pregnant appearance include:  Pyometra, which is a womb infection that distends the hamster’s tummy with pus Enlarged internal organs such as the liver or spleen, which are likely the result...