I had unprotected sex in mid April where I was ovulating, but the next day I took a plan B. My period is 18 days late but I’ve been testing and all test came back negative. on May 7 I had spotting, it was a very faint pink reddish color that would appear when I wiped after I peed and only lasted day. After that I tested again and its still negative. I honestly don’t know what to do :\ I’m only 18