I have unprotected sex the last two days of my period in September, my boyfriend did not cum inside me but just in case I took plan b the next day. Probably less than a 24hour window. During the time I was on antibiotics amoxicillin for my sinus infectio. I’m late for my period by 6days. I took a
pregnancy test but they were both negative. I’m having period cramps. Should I worry ?