Period-like Cramps Before BFP?

Hi ladies! 
I am 2 days before my expected period date. I am having extremely mild cramping as of this afternoon and it's inconsistent. I am sad this may mean AF is nearby...
I have also had VERY sore nipples for a few days and that is not a typical PMS symptom for me. 
Have any of you experienced PMS-like cramps and then got a BFP
Thank you!