I had period on the 14th feb it wasn't heavy and not light just mild in fact, it came 2 days early

I strtd my period on the 25th january and finished on 27th jan.I had unprotected sex on the 1st of feb and took morning after pill, I had period on the 14th feb but they we're not heavy and not light just mild infact it was early period that lasted for 2days and normally my periods last for 2days n half or 3days but not more than that n they start on 22 something .I took pregancy test on the 23 feb and it ws negative.is the any chance tha I am pregnant