The only hormone free birth control methods are getting a Vesectomy, her getting her tubes tied or another pernament method, rubbers, the sponge, the Rhythm method or the Copper IUD. Here is a rundown of many options - hormonal & non hormonal : Find a Better Birth Control: Health & Fitness: glamour.com
I personally never had any issues at all with my Paragard copper IUD ParaGard IUD Contraceptive - Birth Control Options using Intrauterine Conception - ParaGard.
, neither did my Aunt , who even had hers in before she had a baby & got another after her baby. Some women bleed alot after they get it because they are coming off of hormonal birth control & are not used to the other wise heavy periods they normally would have had.
I guess any birth control method can have problems for some women, but the majority do fine. Since my experience has been so GOOD in every way, I can not help but highly recommend it.