My period is now 12 days late. Yesterday I started to get watery browny pink liquid coming out and it has continued today, but it is not very much and not enough to call a period. I am always on time usually with a 28 day cycle. My partner and I did have unprotected sex during my fertile days and I am now very worried as the relationship is not working out. What could this be? Am I getting my period, or is this a sign that I am definately pregnant? I'm too nervous to take a test right now. Thanks