huh?

[palegothic.livejournal.com]

It's only been 16 days since my last period started (November 23rd) but when I used the restroom I noticed blood. Not just a little spot, but what I would see the starting day of my period when I first catch it. Normally when I get really stressed out/sick my period is late by a week or so. I've never had this happen before though. My tummy was kind of upset today (normal stuff for like the week BEFORE it starts) and I'm not really crampy but this is just odd. I understand that stress and whatnot can (and has) mess up your period a bit but you know. I'm not taking BC but my husband and I do use condoms. I know precum can get you pregnant and that there is bleeding with implantation but I have no idea what or how much that would be. Any ideas (aside from stress messing me up?)?