If you are housing guinea pigs together, make sure they are either neutered or they are of the same age gender. If not, you will likely soon have a litter of babies on the way because guinea pigs are notorious for their breeding abilities.
If you have housed a male and a female guinea pig together and if the female is in season, chances are the guinea pigs will mate and the female will become pregnant. Litter sizes can range from one to eight babies (two to four offspring is the most common), which will be born after a 70 to 80 day gestation period.
If you suspect your guinea pig is pregnant, take her to the veterinarian’s office for a checkup. Your vet can conduct tests to determine whether or not she is pregnant and offer suggestions on proper prenatal care.
One thing to keep in mind is that a pregnant guinea pig’s vitamin C requirements will increase significantly. Your pregnant female will need at least 30 milligrams of vitamin C daily, so be sure to provide her with additional dietary sources of vitamin C to maintain her health and the health of her growing family.
Your guinea pig should be able to deliver her litter without difficulty, but be sure to discuss signs of trouble with your veterinarian so you’ll know what to look for in case she requires assistance with her delivery.
If you are still housing your male and female guinea pig together during pregnancy, you should remove the male about a week before the female is due to deliver. In some cases, the male’s presence is a stressor on the female, which may complicate her delivery. In all cases, the female will come into season immediately after giving birth, and it’s very difficult for a female guinea pig to carry back to back litters successfully