Fertility issues

So my hubby and I have an amazing little man. He is almost 7 yrs old! But we have been trying for 3.5 years to get pregnant with #2. We have both been tested with the diagnosis of unexplained infertility. Our first pregnancy was almost immediate after 2 months of trying. I have irregular cycles. I'm curious if anyone else with unexplained infertility had success with getting pregnant unassisted (no <a href="https://glowing.com/glow-fertility-program">iui</a>, <a href="https://glowing.com/glow-fertility-program">ivf</a>, etc.) or had other natural methods that worked for them?? I am tired of seeing AF every month and hearing about friends and family getting pregnant.