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Guinea Pig Pregnancy Calculator

Created by Julia Żuławińska
Reviewed by Łucja Zaborowska, MD, PhD candidate and Steven Wooding
Last updated: Jan 18, 2024


The guinea pig pregnancy calculator will help you determine the approximate day your guinea pig will give birth. It also works in reverse – you can learn the breeding date if you already know the due date. Read on to learn how to tell if a guinea pig is pregnant and how long it can be pregnant.

Love animals as much as we do? We've created many calculators to help you care about your favorite pets, like the rat cage calculator or the hamster age calculator.

Guinea pig gestation period

Guinea pigs not only don't come from Guinea but also aren't pigs. They are rodents, so the only thing in common with pigs is that they are both mammals. Their pregnancy lasts for 59 to 72 days, but usually, they give birth around the 65th day.

⚠️ Breeding guinea pigs isn't easy. Mothers often die during labor or experience complications. It would be best if you also separated male offspring so they don't fight each other or impregnate their mother (they can do so only after three weeks after birth). Always consult a veterinarian about breeding your guinea pig.

How to use the guinea pig gestation calculator?

With our guinea pig pregnancy calculator, you can easily estimate the day a guinea pig will give birth to little pups. You can also find the breeding date if you know the labor date. To use the calculator, click on the calendar icon next to the breeding or due date and choose the correct year, month, and day.

💡 Remember that Omni's guinea pig pregnancy calculator gives an estimate – it assumes that your pig's pregnancy is exactly 65 days. In the end, it may be a few days off, so consult your vet for more precise information. 🐹

Do you also have rabbits? Check out the rabbit gestation calculator to help your bunny get through pregnancy.

FAQ

How long are guinea pigs pregnant?

Guinea pigs are pregnant from 59 to 72 days, but usually, they give birth between the 63 and 68th days of pregnancy.

How do I tell if your guinea pig is pregnant?

A guinea pig is probably pregnant if she is kept with a male guinea pig, and it seems that a mating ritual has happened. It's difficult to notice changes in body shape or features for a few weeks after your guinea pig gets pregnant.

How many babies can a guinea pig have?

Guinea pigs usually have from 2 to 4 pups per litter and can have up to five litters per year. After pregnancy, they can get pregnant again even after several hours. That's why it's essential to keep the new mother apart from any males for an appropriate time after birth.

Do guinea pigs get periods?

Guinea pigs are in heat every 15 to 17 days. They don't get periods as humans do – they don't bleed.

When will my guinea pig give birth?

A guinea pig will give birth approximately 65 days after breeding. You can calculate the due date with our guinea pig pregnancy calculator.

Julia Żuławińska
Breeding date
Due date
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