Injectable medication??

Akashia

Has anyone did the injectable fertility medication? I’ve been TTC for a year now and done over 20 rounds of letrozole or Clomid with 4 <a href="https://glowing.com/glow-fertility-program">IUI</a>’s and nothing :/ doctor wants to do one more round of Letrozole and then switch to Injectable medication... any advice? Good or bad?