Ok so i stopped taking the pill about a week ago. My period was due on March 29, 2018.

I had brown spotting at 2 days past then light pink spotting at 3 days past. With little cramps here and there. Yes my boyfriend and I have been having unprotected sex. I've taken 4 pregnancy test and they all have been negative.

Is it normal to have a late period when going off birth control?