For me the most stressful part really is getting PGS normal embryos. I have terrible egg quality. I respond great to stims, all beautiful follicles of about the same size, last time I got 20 eggs retrieved, 18 were mature and 15 fertilized but then by day 3 they all fall apart. Suuuper slow growers, out of 15 I only had 3 which were 7-cell or more (on day 3 embryos that are 6-cell or fewer are almost all abnormal and for us all were), and of those 3, two were usable. To be honest if I do the IVF and we get PGS normal embryos the fear kind of goes away b/c I know it works, I know the embryo is fine, etc. So it's the fresh cycle I hate...and as I've said before I am not totally thrilled with having kids SO close in age. I always feel like it kind of robs the first one a bit of their time with me, particularly if it's not an easy pregnancy. But what can you do, we don't live in a perfect world!