IVF #1 after upteen clomid and IUI's gave us our little girl. IVF #2 took 6 single transfers ( y FS wouldn't do single transfers which I am now grateful for, but at the time, I was getting very frustrated!). Nothing wrong with embryos. two were day three and the others were great blasts - so it was just plain bad luck for us it took so many (no MF issues, unexplained infertility was our issue). I am now pregnant with bubs #3 - first ever natural pregnancy.

Two friends who also got pregnant on their first IVF cycle both got pregnant after two attempts for their second bubs, both also had unexplained infertility.

Good Luck!