You can try stroking the guinea pig gently when it comes to you, talking quietly, and offering a titbit with your other hand. If you sit on the floor, it can't fall. Keep calling it with a titbit and handling it for a very short time every day, so it gets used to you, and you'll find it will come to greet you in the hope of special treats. Breeding Guinea pigs breed freely. They have a long gestation period of from 60-65 days, and the young are born with all their fur, unlike rabbits, which are born blind and hairless.
Litters are usually small, from one to four babies.
Young guinea pigs are enchanting creatures, but beware of overcrowding, and keep the sexes separate if you haven't enough space and can't easily find homes for the youngsters. Females can breed from as young as a month old, males from two months, so you need to separate them just after weaning, at three to four weeks. Do this even if you want to breed them, because they aren't adult and ready for breeding until they are six months old.