Will I ever get pregnant?? :'(

We've been trying for over 2 years. We've tried almost everything. the only thing we haven't tried is iui and ivf.... I'm scared to do iui because what if it doesn't work and ivf is so dang expensive. I have never once been pregnant :( what if I can't ever get pregnant? This is so depressing. Oh and to top it off, I only have one ovary and one tube.