Hello, i had ivf, only 1 egg fertilize out of 2. i got a call today saying its a grade embryo on day 3. what are the chances of surviving till day 5?

I'm not a specialist: Caveat: I'm not a reproductive endocrinologist. Based on my research (& anybody out there correct me if I'm wrong) looks a bit dicey, but there's hope. Based on this article, maternal age is more predictive of success than embryo grade for successful implantation & you're at prime (18-28yrs). Check out: http://www.healthline.com/health-blogs/infertility-insights/how-embryos-make-grade Warm wishes!

Consider d3 transfer: Impossible to say with certainty, though top quality d3 embryos are optimistic for making d5. My question is: if you have 1 embryo, why wait for d5 and not transfer on d3? If you were planning to do PGS (at age 28?) you'd need to wait, but I see few other reasons (avoid OHSS?) not to just transfer on d3. Elective frozen transfers are also becoming very popular but risky for 1 embryo. Good luck!