Plus Size TTC

Are there any other plus size that's TTC? My husband and I our both on the plus size. We been trying for 5 yrs but been having unprotected sex for 10yrs. I know the first thing people say is to lose weight. I get that but it has to be more than that. Before we were married we was smaller. I seen other women that are on the plus size and still was able to get pregnant. So, it's hard to believe that weight is the main factor. Any positive advice?