I am so sorry, but go in for the beta anyway as you just never know. If you have any reason to suspect immune or uterine issues, as every question you can think of. Yes, DE does give us a greater chance at having a child, but even very young women do not conceive every time they try, either naturally or with IVF. Eggs are very complex cells and embryonic development a tricky thing. Most embryos that are created do not become children. So...all that said, I was pretty floored when our "perfect" fresh embie didn't take. I just put my nose down and geared up for the frozen cycle. Transferred 2 and have twins. Interestingly, after the thaw, those 2 were higher grade embies by a bit than the fresh one was. You really never know.