Insurance authorization

Good morning! We are meeting with our doctors next month to get the whole ball rolling for <a href="https://glowing.com/glow-fertility-program">IVF</a>. I was wondering if anyone had any information about how long prior authorization takes to go through from insurance?? We are blessed to be fully covered for <a href="https://glowing.com/glow-fertility-program">IVF</a> but it requires authorization first. Just seeing if anyone else out there might have an answer for me for how long it took your insurance to go through. Any insight would be helpful! Thanks lovely ladies!!