Unfortunately, it is very difficult to determine when a guinea pig is about to give birth. In fact it is one of the most difficult animals to accurately predict. Not only are the signs not very obvious, but in addition the gestation period is long and a nest isn't built to house the babies.
The only fairly accurate method that helps to determine roughly when the sow is close to giving birth is to examine the pelvis of the guinea pig. In the week leading up to the birth, the pelvis will widen to accommodate the babies during the birth. You will need to have examined this previously so that you know what to compare it with. It is advised to use dates to work out a rough estimate so that you do not have to examine the guinea pig frequently through the pregnancy, as this may stress the animals and result in a still born or miscarriage. The gestation period is about 9 to 10 weeks, although this will be significantly less for a first litter.
Since the dates can be very uncertain, it is advised that you have everything ready for the birth from quite early on if you are expecting babies. This will allow you to be prepared if it happens unexpectedly. It is best to keep the guinea pigs somewhere warm if possible when they are expecting, as baby guinea pigs may not survive if they are born during the night if their cage is in a draft. It is best to keep them in a barn or have a carpet over the cage front to stop drafts. Ensure the male guinea pig is taken out of the cage prior to the birth, as they have been known to eat the babies.
The only fairly accurate method that helps to determine roughly when the sow is close to giving birth is to examine the pelvis of the guinea pig. In the week leading up to the birth, the pelvis will widen to accommodate the babies during the birth. You will need to have examined this previously so that you know what to compare it with. It is advised to use dates to work out a rough estimate so that you do not have to examine the guinea pig frequently through the pregnancy, as this may stress the animals and result in a still born or miscarriage. The gestation period is about 9 to 10 weeks, although this will be significantly less for a first litter.
Since the dates can be very uncertain, it is advised that you have everything ready for the birth from quite early on if you are expecting babies. This will allow you to be prepared if it happens unexpectedly. It is best to keep the guinea pigs somewhere warm if possible when they are expecting, as baby guinea pigs may not survive if they are born during the night if their cage is in a draft. It is best to keep them in a barn or have a carpet over the cage front to stop drafts. Ensure the male guinea pig is taken out of the cage prior to the birth, as they have been known to eat the babies.