AF due in two days

R
AF due in two days, I was cramping last week but that has stopped, my breasts aren't sore and they always are before I start. I just don't feel like I am going to start. 
This week I have been throwing up and getting extremely nauseous. I had to have a friend pull over her car on a 4 lane highway to vomit...I haven't gotten car sick since I was a small child. 
What is your experience before your BFP? Something's just different this time? I'm hoping it's finally my turn.