Is my female hamster pregnant? She mated, has a red bump.

Question

I caught my male hamster mating my female hamster twice! I don’t think she’s pregnant cause it happened on September 15 of this year. But she has a small little red bump or lump on her left side near her vagina and leg. Is she pregnant? Pet's info: Small Animal | Unknown - Small Animal | Female | unspayed | 1 year and 3 months old | 160 lbs

Todd Cecil · Accepted Answer

With these pictures, I would guess she is pregnant. Gestation for a hamster is 15-18 days. On the third photo, it appears as if her mammary glands are developed. Usually hamsters start building a nest site in a corner. I would definitely separate her from the male as they can be aggressive during birthing. It is important to allow the female to have a quiet, minimally disturbed environment, especially during their first litter, to decrease the chance of rejection of babies by the mother.

Is my female hamster pregnant? She mated, has a red bump.

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