how can you tell

Question
how can you tell if a hamster is a boy or girl and if there paginate

Answer
Hi,
thank you for your question.
Here are pictures that show how to sex a hamster:
http://www.petwebsite.com/sexing.htm
I assume you're asking how to tell if your hamster is pregnant :) That's very hard to do, but most females grow rounder when they are pregnant and start to build a huge nest and gather lots of food. A pregnancy lasts around 16-19 days with Syrian hamstes and 18-23 days with dwarf hamsters, depending on the species.
I hope I was of some help to you
Jennifer