What is wrong with me?

I'm so confused ladies.

So here's the whole story.

Towards the end of june I had a chemical.

In July I got my period and all and it was fine.

August period was fine also.

I was suppose to get my period Sept 7.

But I started spotting on sept 2 (which would be dpo9 according to glow). It was very light spotting. Only a couple spots on my liner & only when I wiped. It only lasted like 3-4 days. I'm think it wasn't my period because even if I spot, it'll last at least 5-7 days. I first had some cramping on my lower abdomen, it feels a little heavy down there. I also have been dreaming every night. I noticed I dreamed a lot when I had my chemical so I thought it was a sign. I took a pregnancy test on Friday morning, the morning I started spotting, turned out negative. I tested 2 days later, negative. I tested again on the 7th when my period was suppose to show (which it hasnt) and still negative. I tested again yesterday since it would have been a week since my expected period and I still got a negative. Im guess I'm just wondering what's going on. Could I be pregnant? I don't have any symptoms and I can't be for sure since I caught a cold around the time I started spotting and I'm trying to recover from that. I just notice that I feel more bloated. Heavy on my lower abdomen like I should be getting my period soon but it still hasn't showed. And I've been dreaming every night. Any help, imput or suggestions will be a great help . No sore boobs or sensitive smell.