My periods are around 24 day cycles. My last one was the 9th and ended the 12th. According to the app I was fertile from the 13th to the 23rd ovulating on the 18th.  The entire week except for maybe two days my boyfriend and I had unprotected sex and used no contraception or withdrawl methods. I've had such a weird feeling and I was supposed to start my period today. All the tests I've taken said negative.. I've had "scares" before but none with as good of chance as we have now and my period has always started around when it's supposed to.. Even when I really thought I could be.. So I know I'm not freaking myself out. Even under the worst stress with severe anxiety they have still come on time. Am I just that much in denial that I'm not pregnant? Or is my body not telling me what I want to know? I was going to get blood drawn today.. Any suggestions?