i think my hamster is pregnant (syrian)

Question
i just want to know what is their typical behavior if the hamster is in fact pregnant? because i noticed that everytime i put the male inside the female's cage, she often attacks him.. is this a sign?
pls tell me what to do, just to be sure...

Answer

      The signs of pregnancy in a hamster are weight gain, buliding her nest bigger, and hoarding more food. You shouldn't put the male in her cage at all, especially if she is pregnant. If she isn't and you want to mate her in the future, take her to the males cage, females are more territorial than males.

Thanks for writing