I see. First of all, regarding "right to work", that does not come into play here. That is, "right to work" pertains to unions and whether or not a union can require you to sign up with the union to be able to work for the company. In a right to work state, you can't be forced to join a union as a condition of employment. In non right to work states you can be forced to join a union as a condition of employment. That's all that right to work means.
Rather, Georgia is an "at will" employment state. At-will employment means that without a contract, you have no contractual or other right to employment with the company. The company is entitled to fire you for any reason: a good reason, a poor reason, or no reason at all--as long as the company does not fire you for an illegal reason (race, gender, age, religion, etc...). But it extends beyond firing, to hiring, promotions, demotions, wage cuts and raises, disciplinary actions, and even scheduling. Unless you can show that this was done in violation of a contract, union agreement, or a clear violation of an unambiguous and binding clause against the employer, or that it was done because of some minority status (age, race, gender, religion, disability) that you have, then they do have this discretion.
And it's a bit more complicated, because since there are less than 20 employees, the Americans with Disabilities Act (ADA) doesn't even apply, meaning that your employer can legally discriminate against you based on disability. You don't have any protected medical leave under FMLA (Family Medical Leave Act) and in the absence of those factors, the at will relationship will apply.
In short, it's possible that you could be fired, and there would not be any additional rights that you could seek recourse (aside from unemployment).
I do hope that they are understanding and accommodate you, but I'm afraid that they have no legal obligation to do so. I know this is probably not what you wanted to hear, but it is the law. I hope that clears things up anyway. If you have any other questions, please let me know. If not, and you have not yet, please rate my answer AND press the "submit" button, if applicable. Please note that I don't get any credit for the time and effort that I spent on this answer unless and until you rate it positively (good or better). Thank you, ***** ***** luck to you!