From tiny newborn to full-grown adult — the developmental milestones week by week. Guinea pig pups grow up fast. They’re born remarkably developed — furred, eyes open, and mobile — weighing roughly 70 to 115 grams, and they reach their full adult size by around six months of age, ending up somewhere around 700 to … Read more

The best foods to choose for growing pups — hay, pellets, veggies, and more. The best foods for baby guinea pigs (pups) support their fast growth with extra calcium, protein, and vitamin C. The top choices are: alfalfa hay (richer in calcium and protein than grass hay — ideal for babies) alongside unlimited grass hay; … Read more

A complete overview of raising healthy, happy pups — from birth through weaning and beyond. Caring for baby guinea pigs (called pups) is easier than you might expect, because they’re born remarkably independent — furred, eyes open, mobile, and nibbling solid food within days. Your main jobs are to let mom nurse them undisturbed, provide … Read more

How baby pups feed — from mom’s milk to their first solids to weaning, plus what to do for orphans. Newborn guinea pigs (called pups) feed in a surprising way: they nurse from their mother until around three to four weeks old, but they also start nibbling solid food from as early as two days … Read more

What a healthy newborn pup looks like, the daily checks that matter, and when to call a vet. Newborn guinea pigs (called pups) are born remarkably well-developed — with fur, open eyes, teeth, and the ability to move around within hours — so a healthy pup is active, warm, nursing, and gaining weight after the … Read more

The serious risks of guinea pig pregnancy — how to recognize them, and why prevention and prompt vet care matter so much. Guinea pig pregnancy carries genuine, sometimes life-threatening complications — more than many small pets. The main ones are pregnancy toxemia (ketosis), dystocia (difficult birth), hypocalcemia (low blood calcium), mastitis (a post-birth mammary infection), … Read more

Quick, clear answers to the most common questions about guinea pig pregnancy. Guinea pig pregnancy raises a lot of questions — how long it lasts, how to tell, what to feed, and what to expect at birth. In brief: pregnancy lasts about 59 to 72 days, the signs include weight gain and an enlarged belly, … Read more

What to feed a pregnant (and nursing) sow — and why her needs are the opposite of a normal adult’s in some ways. A pregnant guinea pig (a sow) needs more — more food, more calories, and especially more vitamin C and calcium — because she’s growing pups and preparing to produce milk. The cornerstones … Read more

Getting ready for the birth and arrival of pups — for a safe, smooth experience for mom and babies. Preparing for guinea pig babies (called pups) comes down to a few key steps: get a vet involved to confirm the pregnancy and assess risks, boost the mother’s nutrition (unlimited food, extra vitamin C and calcium), … Read more

How to tell if your guinea pig is pregnant — the signs to look for, and why a vet visit is essential. The main signs that a guinea pig (a female is called a sow) is pregnant are gradual weight gain, an enlarged, pear-shaped abdomen, an increased appetite and thirst, behavioral changes (resting more, less … Read more