3 days before period...wait or not to wait?

So my ex bf and I had unprotected intercourse on the morning of March 5th. It was a 26.6 percent chance of pregnancy according to my chart. I've been off the pill for about 6-8 months and he didn't use the pull out method. My cycle has been normal and coming like clockwork since being off the pill. I tested sunday and got a negative. I'm trying my best to wait until Sunday for a missed period but it's so hard when I want to know. Never been pregnant, but at 28 with the ability to care for myself, a little life would be much welcomed. I just don't want to psych my mind up for more negatives. Any pointers? Or words of hope? I don't have my usual period symptoms either. Just minor cramping sporadically.