During the 2weeks before my period I had missed 3 pills with means I had unprotected sex several times during this time. Not sure of my actual period date but around the time I was due I had bad cramps for a day then a brown period i.e old blood for a day then day 3 very pink bleed followed by brown again. Then it stopped so the day after I didn't think about wearing owt until I had a sudden leak but then nothing again since then I've had mild low abdominal twinges. Can anyone explain please sorry yo brown graphic. Ps I did do pregnant test and it come bk negative