So I started the pill in April and at first I had nausea and spotting  and all sort of side effects . Around the end of May I stop having so many side  effects and stop spotting so I figured my body got use to the pill . Last week my period was late and when it came it was super light and I had horrible cramps and bloating . And it only lasted a few days. It's been about 4 days since my period ended and I'm staring to spot a little and having cramps . Could it be my body is still getting use to the pill? I have heard of implantation bleeding .  I did have sex without a condom a week before my period and a day or so after my period but he pulled out . Could there be any possibility of pregnancy ?