Need some guidance please!

Lacie • ICU Nurse. Mommy of 1💗
  I got my BFP this morning! When should I call my OB? I had a  mc in September. Should I request to get in sooner to make sure everything is ok (have labs done)? 
  Also, I know cramping is normal during early pregnancy, but can I get some reassurance?! I am freaking out! 
Thanks in advance!!