What's going on??

Yesterday I got the pre AF stuff. Just brown nasty stuff I get before I start. Usually I'll have slight cramping with that and I could get that 1 day before I start or a few days before I start

Well I woke up this morning really nauseous at the sight and smell of food and this is usual for me. I have to force myself to eat when AF is here

Weird thing is , AF hasn't actually arrived yet.

I took a test and it was negative. Wondering what's going on! You ladies have any clue??