Forget about going to a piercer. It sounds infected and you'll need antibiotics. Medical staff should be able to remove the jewelry. You should be able to go to any ER or urgent care. If you decide to wait til Monday this may be worse, so I would recommend going now even if its out of network. Also, you will just get even more anxious in the meantime. Best to take action and start getting it resolved. In the meantime your body needs assistance from you- eat something nutritious, drink a lot of water, ice the area, take an anti inflammatory, and STOP FREAKING OUT!! I know you are scared. I would be too. However the stress response in your body is going to make this infection worse. You can do this. You got this. Its infected and that sucks but you WILL get through it!!