It really depends on how far along she is. It's most certainly a good idea to bring her to a vet and have her evaluated.
If you need some help in getting your companion treated, here are some options:
http://www.imom.org/
http://www.help-a-pet.org/
http://www.uan.org/index.cfm?navid=163
http://www.animaladvocacy.net/shelters-rescues.html
http://www.lovethatcat.com/spayneuter.html
http://www.spayusa.org/
http://www.mspca.org/site/pp.asp?c=gtIUK4OSG&b=126801
Don't forget to call your local Humane Society for guidance as well. If you have a Pet Smart in town, they often have the numbers for rescue organizations that may also help, at least with recommendations for where (or who ) to go.
Own Animal Care org.
Animal Rescue&Care Org Owner; Animal Care author; Animal Behavior Consults.;Cert. Avian Specialist;