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How long is a guinea pig pregnant before giving birth?
A guinea pig's gestation is about 60-70 days. After pregnancy, house the pregnant guinea pig alone to avoid fights with other hamsters that cause miscarriage. Provide a warm, quiet, clean environment and enough nutrition for it and the fetuses.

How Long Do Winter White Hamsters Live? Factors That Affect Their Lifespan
Winter White (silver fox) hamsters live about two years on average, with males typically outliving females and unbred females outliving those that have given birth. Lifespan is shaped by breed, sex, a calm and clean environment, balanced nutrition, and prompt treatment of illnessβgood husbandry can add meaningful time.
What happens when a hamster is pregnant?
A pregnant hamster gains weight, larger belly, big appetite, sleepiness, bigger nipples, nest-building, obvious 'double row of buttons', and a worse temper. If still with the male they may fight and she rejects mating. Pregnancy lasts 10-20 days; give a quiet home and extra nutrition.

How to Care for a Pregnant Hamster
Once a female hamster is pregnant, separate her from the male at once β cohabiting risks fights, the male eating the pups, and a quick re-pregnancy while she nurses. Keep her in a warm (25β29Β°C), quiet, dry, ventilated, clean cage, feed a bit more with constant fresh water, and avoid obesity that can cause dystocia.
How long is a female hamster pregnant?
A hamster's pregnancy is about 15 to 16 days, varying by constitution; separate the male to avoid fights. Warm the cage near birth to prevent pup death, and see a vet if overdue.
How Do Hamsters Reproduce?
Hamsters can breed at 3-4 months. When a female is in heat, introduce a male in a dating cage; after mating she ejects him and gives birth in 15-22 days.
At What Age Can a Hamster Breed?
Breed a hamster at about 5 months. Females can conceive at 2 months but waiting until at least 3 months avoids premature birth and weak pups.
How long after mating is a hamster pregnant?
After conception, a hamster gives birth in 15-22 days. Separate male and female right after mating, as the female will attack the male; cohabitation during pregnancy causes fights harmful to pups. They mature at 2 months but wait until 3 months to breed.
What are the signs of a pregnant hamster?
A pregnant hamster eats and drinks more, grows irritable, and rejects the male. Separate them to avoid fights and miscarriage. Later the breasts swell with a clear 'double-button' look, and a little milk appears two days before birth. Offer protein like mealworms and fish.
How do you get a hamster pregnant?
Hamsters can breed at about 3 months; look for swollen chest and changed calls. Pair a 4-5 month male with a female, avoid inbreeding; litters of 5-12 after 15-22 days.