I had sex the day before my period ended without a condom, but I am on birth control. But I was switched from mononessa to sprintec. I haven t missed a pill, but I m afraid I could be pregnant. I know it was stupid of me not to use a condom, but I am just worried. I also know that mononessa and sprintec have the same active ingredients. I don t have any symptoms, but my chest does hurt a little. I am not sure if it is my breasts or not. I am in college, and its my finals week. So I might also be stressed out. Is this just my body messing with me? What do you think?