Implantation or chemical

I found out I was pregnant the 27th (the first two pregnancy tests) the 28th was my due period to technically today the 29th I would only be a day late we’ll anyways in the later morning I started to spot it was dark brown I thought implantation I have zero cramping and this evening it’s has become more like the picture blurred out…. I would only be about 3 weeks so it would be a chemical pregnancy I am so confused…. I did take a test today with the bleeding that’s the test shown alone and it is still positive I was thinking I was a little crazy this whole situation is a bad timing tbh….

But do you think the bleeding is implantation or chemical !!!