Period question

Sara
I was supposed to get my period on 02/29... I felt like I was going to get it, but all I had was clear discharge with spots of brown. That lasted for a couple days, then completely stopped. And then nohing, still no period. I'm pretty sure I'm not pregnant. The last time we had sex was 01/04... So if I'm pregnant it's a looooong shot. I'm also testing negative. Last time I was pregnant it didn't show up on tests until I was 10 weeks pregnant. Although it ended in miscarriage.
Am I just late?? Or what? I've never seen that kind of discharge before.