So I had sex about two days ago (unprotected and I'm not on birth control but I have a doctors appointment to be put on it soon so don't lecture me) and I am waiting for antibiotics because I have had an infection for about a week (not sure what kind of infection). <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> told me I am supposed to be ovulating today and my period isn't due until the 16th but I'm bleeding lightly and my stomach hurts like period pain. My last period was two weeks late so now would be about the time I would've come on if my last period was on time. Do you think this is just an early period? My periods have always been late but never early. Or is it something to do with the infection or unprotected sex?!