sensations that I've never felt before

For the last 4 days I've been feelings things in my stomach  that I have never felt before. I felt tugging in my very lower stomach and towards the right of my belly button quick sharp pains in my very lower right side (more towards my hip). 
Could is possible be pregnancy if AF isn't due for another week?
Did anyone else experience this so soon? What else could is be?  It is not painful