Last Modified

May 12, 2023 by Umair Shahid

Pregnancy in guinea pigs is a rather short experience, but it is important to understand the basics. It’s essential to ensure that your guinea pig is healthy and cared for throughout her pregnancy and beyond. Knowing how long are guinea pigs pregnant help you plan.

How Long Are Guinea Pigs Pregnant?

According to MSD veterinary manual, female guinea pigs usually have a pregnancy duration of 59-72 days (65 days on average). When the litter size is smaller, the pregnancy duration is longer. For a litter of one guinea pig, the pregnancy period is 70 days; for a litter of six guinea pigs, it is 67 days.

In this article, I will discuss the length of a typical guinea pig pregnancy, as well as other important factors that should be taken into consideration.

Average Guinea Pig Pregnancy Length

Guinea pigs typically have a gestation period of 59 to 72 days. This means that the average length of a guinea pig’s pregnancy is around 63 days. So, you only have two months to collect items for your guinea pig babies.

Female guinea pigs are very protective of their young and should be kept in a separate cage until they are weaned off their mother’s milk, usually at around three weeks of age.

Owners need to provide them with plenty of fresh hay, clean water, and nutritious food during this time for optimal health and growth.

Pregnant Guinea Pig Behavior

A pregnant guinea pig often displays unusual behavior before the physical signs of pregnancy begin to appear. Among these characteristics are moodier and more aggressive behavior than usual.

Moreover, they may be less active than usual and resist being manipulated. The amount of food your guinea pig eats will also increase

Signs of Pregnancy

When guinea pigs (females) are pregnant, their abdomens grossly expand. Pregnant women often experience a double increase in their body weight.

Since pregnant sows do not build nests during pregnancy, it may be difficult to determine the time of delivery. However, a gradual widening of the pelvis occurs just in front of the external genitalia of sows just before their litters are due to be born.

Within hours of delivery, this separation reaches a distance of slightly more than one inch. If a female is bred after 7 months, her pelvis doesn’t separate, creating a tragic situation.

To save the life of the sow and her young, a cesarean section is usually required to deliver the young. Generally, a straightforward delivery takes approximately half an hour, with an average of five minutes between each delivery.

Preparing For the Birth

On average, guinea pigs are pregnant for about 63 to 70 days. During this time, you need to make sure that your pet is getting all the nutrition and support she needs.

It’s important to monitor your guinea pig’s diet throughout her pregnancy and ensure that she has access to fresh hay, vegetables, fruits, and pellets with high calcium content.

Additionally, it’s essential to provide extra space for her so she can move around comfortably and build a nest before giving birth. Pay attention to any changes in her behavior or physical appearance during this period.

If you notice anything out of the ordinary be sure to speak with your veterinarian as soon as possible. With proper care and attention, your guinea pig will have a healthy pregnancy and successful delivery!

Post-Delivery Care

Guinea pigs usually give birth to their litter of pups after an average gestation period of 59 to 72 days. After delivery, the pups will need help getting off to a healthy start.

The mother must be well-fed and cared for during this time, as her body needs time to recover from the pregnancy.

It is also important to ensure that the pups are warm and dry to prevent dehydration or hypothermia. Make sure they have access to food and water, and check on them regularly.

If any of the babies appear weak or unresponsive, contact a veterinarian immediately. Additionally, if the mother shows signs of neglect, like loss of appetite or listlessness, take her to the vet right away.

Additionally, if you notice any signs of maternal neglect such as lack of appetite or listlessness in the mother, take her to the vet for a check-up as soon as possible.

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Knowing When to Seek Veterinary Assistance

Guinea pigs are typically pregnant for 59 to 72 days. If your guinea pig is late in delivering her litter, you should seek veterinary assistance.

A vet can take an X-ray or ultrasound to determine if the guinea pig is still pregnant and if the pregnancy is progressing normally.

If your pet has been pregnant for more than 72 days, she may need medical help to deliver her litter safely. A pregnant guinea pig often displays unusual behavior before the physical signs of pregnancy begin to appear.

Among these characteristics are moodier and more aggressive behavior than usual. Moreover, they may be less active than usual and resist being manipulated.

The amount of food your guinea pig eats will also increase. Lack of movement or decreased energy levels are other signs to seek veterinary assistance.

Additionally, you should contact a vet immediately if your guinea pig appears to be having difficulty during labor.

It’s important to monitor your guinea pig closely throughout her pregnancy and delivery so that any problems can be addressed quickly.

By paying close attention and getting medical help when needed, you can ensure that your pet has a safe and healthy delivery.

Frequently Asked Questions

How Can I Help My Guinea Pig Prepare for the Birth?

Helping your guinea pig prepare for the birth of her young is an important part of being an attentive pet owner.

You can provide a safe and comfortable area for her to give birth in. In addition, ensure the mother and child’s health with a nutritious diet.

Additionally, provide your guinea pig with plenty of fresh water and hay, as well as vitamins and minerals to help her stay healthy.

Finally, it’s also important to keep your guinea pig away from any potential stressors to maximize the chances of a successful birth.

What Is The Ideal Environment For A Pregnant Guinea Pig?

The ideal environment for a pregnant guinea pig is warm and secure. The cage should have plenty of space to move around and should be kept clean.

It’s also important to provide plenty of fresh food and water, as well as a comfortable area for rest. To keep her stress-free during pregnancy, minimize disturbances like loud noises and sudden movements around the cage.

During the last few weeks of pregnancy, check on your guinea pig regularly to make sure she is safe and healthy.

At what age can guinea pigs leave their mothers?

Around the third week, they’re ready for weaning. It is at this point that they will stop suckling from their mother entirely. To avoid distress at being separated too early, babies should still stay with their mothers for around 4-5 weeks.

How many times can a guinea pig get pregnant?

In a single year, females can have up to five litters. During pregnancy, male guinea pigs develop dominance over their female counterparts to protect them and mate.

Are There Any Health Risks Associated With A Guinea Pig Pregnancy?

A guinea pig pregnancy can be risky for both the mother and the offspring. As such, it’s important to monitor their health throughout the gestation period. Potential issues include uterine infections, low calcium levels, dehydration, and premature birth.

If any of these occur, it is essential to seek medical attention right away to ensure that both the mother and baby guinea pigs are healthy.


It’s important to be prepared for your guinea pig’s pregnancy, so you can help ensure safe and healthy delivery. Make sure the environment is comfortable and that you take extra care of her during this time.

You should also be aware of any health risks associated with the pregnancy, such as overfeeding or too much stress. If you follow these guidelines, your guinea pig’s pregnancy should go smoothly and she’ll likely give birth to healthy babies.

With a bit of preparation and research, you can easily provide a safe and nurturing environment for her throughout the entire process. Good luck!


I am a Doctor of Veterinary Medicine and have a keen interest in animal health care. Working as a veterinary content writer, I intend to stay with professional approach in producing quality content. I like research-based reading and currently seeking my veterinary profession. My hobbies are travelling to exotic places and observing nature to the fullest.

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