Irregular cycle
Q: I have an irregular cycle, or rather haven't made a proper recorder of my dates, until recently. Since July this year I've made a sincere effort to monitor my haidh. I've notice that I usually have my haidh for 3-4 days each month with paak days of 18-20 days. However sometimes I have absolutely no discharge after 3 days and I start to spot within the 10 day period for another day maybe 2 or 3. Is this haidh or istihaiza as it is not my habit? I am on a pill. I am very concerned as I am leaving for Haj and not sure how this would affect my Salaah and tawaaf e-Ziyaarat. Do I follow my new habit or that before the pill?