Ivf #2 maybe?

After 6 rounds of clomid, 3 IUIs, and 2FETs, i have an amazing baby girl. My hubby's insurance changed and it looks like they will help cover IVF. Yay!!!! Im wondering if I can go staight for IVF again. I was unexplained infertility so im not sure if insurance will immediately cover it or do I have to do all the tests again?

I originally planned to try natually for a while for #2, but im getting close to 40 so i dont have a lot of time to waste. AND i want to take advantage of some financial assist.