am i pregnant

[imscarred000]

Hi guys, im 16 and recently had PROTECTED sex. We used a condum but he did finish inside me. i checked the condum for any leaks but everything seemed fine. I havent had sex in like a year so i was kind of sore after we did it. A couples days later i woke up and found dark brown discharge. Today is thats second day ive had this discharge. Its usually dark brown but can turn light brown throughout the day. My period was suppost to come 4 days from now. Can i be pregnant ? or is this normal before my period ?