the facts are, that the shelters near me DO NOT have any guinea pigs!
The facts are, if you kept your eye on local papers, contacted vets to see if they knew of any accidental litters about to happen (or had happened) and posted here, to GL and pigloo saying you where looking to provide a loving home for another guinea pig, I am 99% sure within 2 weeks, you would have more pigs thrust at you to take care of then you could shake a stick at! I would think that out of all the possible pigs, a few of them would have owners or contacts that would
Drop them off on your front door if needed! You live in New York! Not some remote island devoid of pigs! If you can't drive, fine, other people can.
Justify it in your head as much as you want, you knew from your first post no one here would agree, you should know by now that your instincts where right. You should not have bought the pig! That said, what are you going to do about it? I suggest, as any member who is here having bought from a petstore has in the past, take your lumps, catalog your wrong doing in the back of your head, and move on, learn how to take care of the pigs you have, never buying from a petstore again!
At 2 weeks, it is unlikely you can tell if she is pregnant. Look up the info on GL that was given. Check out the links, they have great info on spotting problems and preventing Toxima. Post your diet you are feeding, make sure what you are doing for her is right and good. These things, in being responsible will improve her life and make it better. Not trying to browbeat members of a rescue forum into supporting your purchase!
As for the vet, petstore pigs often have parasites or infections. A vet check and treatment with and anti parasitic is a good idea. I believe Mange Mites can cause problems with the pregnancy and with the pups for example; it is safe to treat a pregnant sow with Ivermectin for this condition! If you absolutely will not bring to a vet, then you can do Ivermectin over the counter with a good kitchen scale. I highly recommend that.
You have a choice to make, do what is right for your pig and stop your antics now, or move on to another forum to have your questions answered. (Lot of bad info out there, I don't advise it) I am personally willing to help you and your pig, but I won't be if I am called names like being "insane" any further.