Thoughts?

My period isn’t suppose to start for another 4 or 5 days and I just went to the bathroom and had some spotting when I wiped. My period has never really been this early. Is it possible that it could be normal for so long and just now change to be here early?

This is our 2nd month trying for a baby so I’m new to all of this stuff

I tested 2 days ago and it was negative.