What is the best and most correct way to get pregnant. Don't seem like I'll never be a mother.?

My husband and I have been together for 4 years and we have been trying to conceive for about year but no luck yet. I been using Geritol Tonic, I was suppose to mix a little into my food but seem like it wasn't working so I stopped using it. Afraid to go to the doctor because I'm afraid to hear that I'm unable to have children. In a way I don't want to try any forms of medications because I rather just find out the original way. This will be our 1st kid and since we're still young, I would rather give birth now before I get older, I'm only 25. I been invited to baby showers after showers and I'm ready to just have my own and start a family. Have own home and financially stable, so what should I try.