Could I be pregnant.....

[Not so sure]

I have been on the birth controll patch for almost a year now. I put my patch on the last day of my period. there was som elight pink spotting mixed in with vaginal mucous. We had sex a few hours after i out my patch on. My husband did "cum" in me. It's been three days isnce that day. I know I cant tell now if I am pregnant but what are my chances? My next period will be in three weeks. I go to boot camp for the navy in Four weeks. I need to know sooner then in three weeks if I am pregnant. I need to know so i can start planning my future. Thank you for reading this and for your help.

Jay