please help.

Claritza
Okay. This is my deal. My period  started August 25-30. Me and my husband decieded to try for baby #2. My supposedly ovulation week was September 12 - 17. On September 17. As I was wiping blood came out. A little freak out. It didn't think about it. And it was spotting. 2 days it was just spotting red and then for the past 3 days I've been spotting brown. I'm trying to remain come. But I'm still worry! Anyone been threw this? My period isn't due until October 1.