Hello Dr Downing,
I am new to this site, have been trying to figure out how to post my question to an expert like yourself, but so far have only succeeded in posting in general discussion forums. I am 55 and my fiancée is 50. I had a
vasectomy in 1973, and a reversal in 1979. My fiancée is premenapausal, in that she still has periods, but they arrive anywhere from 28 days to 45 days apart.