I'm embarrased to say this, but when I got Chico, I was oblivious about purebred dogs and I feel I didn't ask the proper questions when I got him. The person I got him from only spoke Spanish, so my husband did all the talking. I saw 2 other Chi's with Chico, but didn't even ask if the parents were on site or if he was registered or anything. (I was to overwhelmed and overjoyed about getting him

) I didn't recieve any papers from the breeder, but from all of Chico's features and his personality, I'm 99.9% sure he's pure.
I was thinking of studding him, because a lady my mother in law knows wants to breed her female Chi. I don't want to be irresponsible about this, so my question is, is he supposed to be registered in order to stud him? After reading some of the posts on here, I can see you are all experienced and know exactly what to do, so your advice and opinions will be very much respected and appreciated by me.
I just want to know the right way to do this, and if I should really do it at all? I'm not looking for a profit or any money out of this, but instead just want people to experience the happiness that comes from having a Chihuahua. I spoke with this lady who wants to breed her female chi, and told her I wasn't interested in a pick of the litter, because frankly, I'd get attached and I can't have another dog in my apartment...lol. So, could I still register Chico and should I stud him at all?