I took trust pill a month ago then when I had my period its very light pinkish and last for 3 days.then I started the new pack and I just finish the first row.then I suddenly stopped taking.but we have no sex contact with my husband until the day I stopped until now.2nd after I quit the birth control pills I have light spotting for 2weeks.supposed to be I'm expecting my period on the 20th of Feb.is this the side effect of birth control pills?