FET with CC Embryo

I am starting a frozen embryo transfer cycle this week for an untested day 6, 5CC hatching blastocyst. I know it’s poor quality and we probably don’t have a great chance at success, but the odds aren’t zero. This is the only blast we’ve made after 2 egg retrievals due to severe male factor infertility so I guess I’m just looking for some success stories from others who’ve had poor quality embryos, and also some hope and encouragement. Thanks!