I took i pill 2 months ago. On 21st august 2018, after protected sex. I had bleeding for 7 days after taking the pill that is from 28th august. Since then my periods are very scanty around the dates. Only for a day or two. I took the pregnancy test but that also came negative. This month I expected the periods around 25th october. But I am again having scanty bleeding. That don't even require use of pads. I am scared what to do.