Will Discontinuing Micronor Regulate The Next Menstruation?

I have been on micronor for about a month now. My reason for taking this was to not have a period because I will be going for pilgrimage in April. But I got my period 9 days into the pack and now there is spotting..and my mood is really crappy! when will I get my period if I stop taking the pills? I only need a 15 day of no-period window..and is there anything else I can take? I am breast feeding my 17 month old.