Help????

So , my calendar states my period is coming within 2 days . Yesterday before work, I wiped , and there was brown, it was like barely there but noticeably there , so I put a pad on, after work, I wiped and it was still brown, not a lot , and I did cramp a little . Fast forward to today, there’s no brown or blood ??? Is this normal? Should I be worried ? I’m lesbian, so pregnancy is out of the picture. I’m so confused ? Is this normal.