2 DAY PERIOD!

Fabiana
HELLO THERE. SO THIS MONTH ON THE 29TH I GOT MY PERIOD BUT IT ONLY LASTED FOR 2DAYS IT WASNT LIGHT BLEEDING IT WAS NORMAL. BUT IM CONCERENED BECAUSE MY PERIOD ALWAYS LAST 4DAYS. HAS THIS HAPPENED TO ANYONE COULD I BE PREGNANT? I HAVE BEEN TTC TOOK A PREGNANCY TEST A DAY BEFORE MY PERIOD BUT IT WAS NEGATIVE SO I ASSUME IM NOT.