I had unprotected sex on the 31st of october around 9 pm. Penetration was marginal and my partner did not cum inside me. However there was precum. According to my cycle tracker app, 1st nov was ovulation day. I took an emergency contraceptive pill 16 hours after the act. I have also been on a dose of antibiotics 3 days a week for the past 3 weeks. I've worked myself into a panic pretty much about the possibility of getting pregnant. Keep reading conflicting things about the efficacy of the pill during ovulation. I've gone spare with worry. My period is due in 13 days but honestly at this rate I won't last that long! Please help!