Nauseated beyond belief!

Hi dolls! So..... I am trying to conceive # 3 for the past 5 months now. With my first two pregnancies the nausea was the dead give away as it lasted ALL 9 months with both babies! For the past week or so I have been nauseated and just wake up with the puke like feeling but it lasts pretty much all day or comes an goes. I ended up taking a test and got BFN however I tested 3-4 days earlier than my glow app says so. AF is due on Friday I think I may go insane before then!?