Injectable Contraceptive Volume 8 years ago, can I have problems?

I am 27 years old and I do not menstruate anymore because I have been injecting Contraceptive for 8 years straight. Do you have a problem? Can I become infertile? Can I have problems in my uterus?
Expert answer:

It may take a while to get pregnant when you stop using it, but you will hardly have other problems because of Contraceptive.