Nowadays, there are more and more kinds of domestic pets, which are no longer limited to dogs and cats, but in most domestic pets, cute pets still occupy the main position, especially hamsters. They are not only small cute, but also very lively. Such cute pets can add a lot of fun to the family. But the hamster is so small, how to tell if it is pregnant? In this regard, the following is a brief introduction to this problem. In fact, as long as it is a mammal, the performance is basically the same during pregnancy, because the estrogen in the body will be abnormally high during pregnancy, which will affect the nerves of the body. Therefore, the first performance is irritability, and sometimes even abnormal irritability, which is also the case with hamsters. Once pregnant, the female hamster will become very grumpy and even attack the male hamster. Therefore, pay more attention to their situation every day. Once abnormalities are found, isolate the two hamsters first to avoid unnecessary harm to both sides. In addition, the female hamster will have some abnormal performance after pregnancy. Losing her temper is on the one hand, in addition, she will climb the roller for a long time. Some people may say that hamsters like to climb the roller, so if the owner finds that the female hamster climbs the roller longer than before in a certain period of time, he should pay great attention. In the later stage of pregnancy, the body shape of hamster will change greatly. At this time, it is very easy to see that it is pregnant. First of all, its belly will slowly become larger, because the hamster itself is small, so it can’t get anywhere if its belly becomes larger in time. There will be significant changes in its body, and its body will become pear shaped. If the pregnant female hamster is turned over, it can be found that its breast becomes larger after pregnancy, which is an obvious double breasted shape. It should be noted that once the hamster is found to be pregnant, it should be prepared in advance. The eating environment should be improved. Especially in terms of diet, more nutrition should be added to ensure the healthy growth of the hamster baby. At the same time, it is also necessary to prepare a comfortable production environment to avoid other accidents. How do hamsters tell pregnancy? The above content briefly expounds this problem. I hope the above content can help you. In addition, I should remind you that if you find that your hamster is pregnant, you’d better isolate the hamster in time to prevent them from fighting with each other and causing adverse effects on the female hamster.