Getting nervous!

Kathryn • Hello everyone, my name is Kathryn and my fiancé and I are trying for baby number 2. We have a 4 year old daughter
So my period is due between Saturday-Monday. I'm getting nervous! I want to be pregnant so bad and don't want AF to show! Yesterday I had a slight small cramps in my lower abdomen for maybe 15-30 mins. Nothing major and some lower back discomfort once again nothing major and today I feel like I'm running a fever. Could that be my period or implantation?