This morning, I thought I had begun my period. There was a little brownish-red when I wiped, and I assumed I had started my period, so I put a pad on. Four hours later, I went to the restroom and there were only two small spots of blood. I wiped, and there was also just a little bit. Now, I'm in the middle of the worst of my PMS symptoms -- cramping, sensitive breasts, sore knees and an achy lower back. I usually start between the 21st and the 26th. Maybe two and a half weeks ago, my boyfriend and I were playing around some, and he fingered me. I'm worried that he might have touched himself first and gotten pre-cum on his fingers. I've been incredibly anxious, wondering if I could get pregnant from it. We've never had unprotected sex before or anything.
Please help? Is spotting normal before a period, considering that I've been very stressed and worried lately? And is two and a half weeks too soon for pregnancy symptoms?