Hi, Im 20, and have always had IRREGULAR periods. I havent had my period since may, and had sex for the first time 9 days ago. We used a condom, but it slipped off at some point and some ejaculate got inside me. I took Next Choice EC about 4 hours later, but I slept past my alarm and took the second one 18 hours later. I noticed some spotting today that was kind of brownish. Im pretty terrified right now, could I be pregnant and whats the soonest I could take a pregnancy test?