night sweats a sign?

Melissa
Has anyone had awful night sweats either before they got their bfp or right after? 
I'm just under a week late and the past 4 nights I am waking up saturated in sweat. I've turned the heat down, shut the vents etc. a lot of symptoms you question if it's in your head (min being bouts of nausea, food aversion like crazy!, and motion sickness while driving) but sweating like that at night can't be made up haha! 
Curious if anyone else has had this happen? 
Took a test with fmu and it was neg.