Sharp pains

Ashley • Proud wife, mom, bonus mom (step-mom), and physical therapist! Expecting baby #2 February 2018. Loving my hectic life!!
So AF hasn't arrived yet (she should be here one day this week. Cycle still off from BC so hard to tell) but today I have been having sharp pains in my lower abdomen. I thought it was AF but they are more pinpoint sharp vs crampy pains. They kind of come and go. Has anyone else ever had this (pregnancy related or otherwise?)