How many embrayos to transfer

I am new to the <a href="https://glowing.com/glow-fertility-program">IVF</a> world and had a conversation with my RE about possible <a href="https://glowing.com/glow-fertility-program">IVF</a>. I asked all my questions and then I asked him how many embryos they transferred at Shady Grove Fertility and he said it was up to us and his decision but then said his plan is to transfer one. What has been your experience? Did you have the choice? Is there a medical policy with embrayo transfer? Is it just a shady grove thing.