Fat Hamster

[yellowlilax]

I got 2 dwarf hamsters about 2 1/2 weeks ago. I bought them at Petsmart and they said they were both female and 3 months old. In the past week, Roxy has grown to about almost twice the size as Zoe. Is this common once they grow? I really hope they are both female and Roxy isn't pregnant :( They love being together and if I take one without the other the one left behind runs around looking for the other. If she is how can I know? How long are they pregnant before having the babies?

[pearllady]

I'm not sure about dwarf hamsters but hamsters have a 16 day gestation period and can get pregnet with in hours of giving birth. If you hold them up so you can see. (hold them by the scruff of the neck) females genitals are close together, males are farther apart. If they both look the same you should be safe. If it helps any I also have two and one is bigger than the other.