I had K at 35, and I feel old, but infertility made things four years later than we planned. 55 is really old to be planning children, IMO. Not only is there lots of complications to consider, including infertility, miscarriage increase, and genetic deformity increases....but average life expectancy is, what? 76? (depending where you live). So, you are going to be a burden on your child (nursing homes, looking after you, taking you to medical, living with them, driving you around) and then your child will lose you at a young age. Of course, people can live longer, or shorter. Studies do show that although people are living longer, that quality of that life is going down from, say, people who lived past 70 years fifty years ago. Is this a reason to choose NOT to have a child at that age? I think so. But that is my opinion. Most women have reached menopause at that age, so, nature has taken away those chances for most, which I think is nature's way of saying...nope, you are DONE.