Quoting Evan My Heaven:" I had sex once this month due to my knee surgery. It was around the time of ovulation but I hadn't taken ... [snip!] ... makes up for it. That means my period should start within 30 minutes of this post. As a matter of fact, I'm feeling crampy."
We only had sex once this month too somehow.... we've been so busy and exhausted. It was THE DAY I ovulated but I don't have a good feeling about it. My period is due the 27th though so I guess we'll see. Good luck... it certainly could happen!