baby passed away at 25 weeks

some of you may know my story. my partner and I got really blessed with our first frozen transfer implanting but today the heartbeat was gone. we did PGT-A testing and everything else and it was all normal. now I'm in labor and delivery waiting to deliver I got an epidural three hours ago. do you guys know how soon I could do another frozen transfer? I need help this is the worse day of my life. this community understands the pain of infertility.

I felt so lucky that we got so many "normal" embryos but now this happened. we may not find out what caused this apparently there is a 50 % chance we will not find a cause.