Is this normal? I'm quite worried as its never happened to me before may be tmi

So i started what I think was my period it wasn't heavy but wasn't light either and only lasted 2 days (im not spotting old blood) but before that I had tested positive on a pg test (3 of them) im scared to test again and be let down Ive never had this happen before where my period has lasted 2 days normally it's 5 days I will be calling my doctor tomorrow as I need to go anyways this just give me more reason to call