Unfortunately, miscarriages do happen to approx one out of five pregnancies, whether or not they occur naturally or as a result
of IVF or other fertility treatment. Thus,
chances of a second
miscarriage are in the 20% range. If you have good quality frozen embryos, you might want to consider that route, or another fresh cycle. I am very optimistic that your chances for a healthy pregnancy are good, based on your age and your response during your IVF cycle in the past. Good luck!