Suggest Remedy For Delayed Periods

HiDear Ask The Doctor: Hi there. I am TTC, I used contraceptive pills for about a year. I stoped one week before compeleting one pack of 28 pill. I had my period 2 days after stopping the pills. after that I didnt have my period till 40 days. my normal cycly was 29-30 before starting my pills. after 40 days I had my period and now its been 35 days that I dont Have my period. I had only one brown spot one week ago. I'm feeling that my period is about to come but I go to the toilets to check and see nothing. last month I had a 40 cycle and I though the reason is that my period is getting irregular due to stopping my pills but what about this time? could you please help me? am I pregnant? I have been sexually active but I had ectopic pregnancy before and lost my left tube, may I answer your health queries right now ? Please type your query here...