6 days before AF

I got this 6 days before AF and although I feel like I should be excited I can’t help but be concerned of how early it showed. I’m afraid it’s twins or will become a chemical pregnancy. My last pregnancy was spontaneous identical twins that developed TTTS and one of my sons passed away before birth.

Is it common at all to show positive this early? I have a consistent 28 day cycle.

I took the test early because I was coming down with a cold and wanted to double check before I took some meds. Then of course I got a fever last night which makes me even more concerned. I’m a mess all around!