I have been prescribed Evorel Conti, having had side effects with other HRT medication. I note that this is not recommended for women who have had a period within the last 18 months. However, I am not sure when I had my last period. I have been on different HRT for the last four years some of which allowed periods to continue. Do these count as normal periods? Also, I cannot remember when I had my last one but I think it was less than 18 months ago. Can anyone advise?