I’m getting so frustrated ...

So I’m 22 years old and I’ve been trying to conceive for 2 years with 1 ectopic pregnancy in May. I have regular periods, regular hormone levels, my hsg looked perfect, & my fiancé’s sperm is great. My doctor pretty much said it’s unexplained infertility and won’t give me any meds like clomid because of my weight. She also says I’m so young just keep trying and it will happen. What can I do for unexplained infertility?