Hi I'm currently taking the birth control Sprintec 28 and I've been on it for months now because my period used to make me nauseous and the cramps were unbearable. After finishing a pack I didn't pick up another pack until a week later and had to change my start date. I had sex using a condom, and now I'm 2 days late on my period. I don't have signs of pregnancy, but I'm scared I'm pregnant. Is it possible?