Am i prego?

ok so the last 2 months my period has been brown and a little pink i have bithcontrol but last month after haveing my period for oly 3-4 days the pill was out i thought i would get more so the next 4 days me and my bf were haveing sec he m ust of cam in me at least 3 times i havent been on the pill since bc i missed the spand to be off of it i have been haveing really bad nipple pains and overy/stomach cramps i have been very tried have been haveing headachs and been haveing more craveings