I dreamed AF came

I dreamed last night I started my period. I'm in the dreaded two week wait. I woke up this morning exhausted and my husband sent me back to bed. I slept almost 4 more hours. Woke up cramping. And a little nauseous...more like uneasy. 
Seems way too freaking early for PMS. But it also seems early for pregnancy symptoms. My period, assuming it comes and stays on time, is due September 7.