I started taking my pill again after my 1st period in January that lasted 7 days, everything was normal , then my Feb period was only 3-4 days, my march period was like 6 days now ever since the day after that period ive had spotting and bleeding, I did have a miscarriage in Nov so I don't know if its because my body is getting used to the pill again or what, I was on the same pill for a couple months before I went off it and got pregnant, I also have been taking clindamycin for a tooth infection would that contribute to the spotting /bleeding?