Help! Anyone relate?

Na
I'm new to this. I usually just ready other posts. My fiancé and I have been ttc for about 5 months. With our wedding approaching, we decided we would put it on hold until after. 
Well, the past 2 days I've had a terrible time sleeping. And when I do fall asleep I wake up completely soaked with sweat. I've been nauseous for 2 days and today I've started to feel slight cramping. I'm about 5 days away from my period starting. 
Is this just wishful thinking or can anyone relate?