My period ended on October 25. I had unprotected sex on Oct 31 and nov 1. 5 days later I had light pink spotting and light cramps and now breast sensitivity. I took a test a few days ago but its negative. My period isn't due until November 25. Can I stillbe pregnant

Yes, but you have tested far to early.
you MUST wait untill you have missed your expected cycle date.

Ok thanks