I used to take TriNessa then I stopped for a few months and now I am ready to start again. I am not sure when I should start taking it again because I haven't menstruated for a few months. The last time I Menstruated it happened 3 times in one month with just a few days between each one. I have always been fairly irregular and I know I am not Pregnant. Because the instructions are dependent on your menstruation cycle I am not sure when I can start Tri Nessa again. Thanks.