Feeling A Little Confused...

Okay so let’s just start by saying that I had my last period at the end of March 2018 and it ended on April 1st. Then I would say that maybe around the middle of the month( when I usually start my period) I started spotting, barely enough to even notice until I would go to the bathroom. That lasted maybe 3 or 4 days and that was it. I was thinking my period was still suppose to come after but it didn’t. Now we are in May 2018 and I took a pregnancy test yesterday and it was negative. Am I jumping the gun? Do u think there’s a chance of me being pregnant?