I don't know much about breeding, and that is why I would not do it. Aside from the overpopulation issue, which is problem enough, I feel that you really have to be comfortable, knowledgable, and confident to aid in the birth of any animal. As far as the "free" guinea pig thing - I am not sure why you wouldn't want to pay a $25-$30 adoption fee, knowing it is going to a good cause, however, there are free guinea pigs out there. I had been actively looking for a
GP for over a month, after having done research for a cpl months. I checked petfinder, and the closest
GP I could find was 2 hrs away. I ended up finding two listings on craigslist - one was for 3 (F)
GPs with a c&c cage for $75 and another listing for a (M)
GP with the store cage for free. I wanted to adopt the 3 but was scared it would be too much for us to take on right away, so we ended up going with the male for free. We are now back on crigslist looking for a
GP friend - I should have just taken the 3. If you are willing to have patience, I am sure the right
GP will come to you.