Boobs, melons, air bags, pillows

Sian
So.. Glow tells me to wait one more day to do a pregnancy test - which I will. 
However
That isn't going to stop me over thinking every possible pregnancy sign for the next 24 hours.. 
I'm 5 days away from AF showing up and already have really tender boobs, the sort of tenderness I would feel due to my period. But usually I wouldn't notice the tenderness untill a day or max 2 days before period..
So could it be a sign of having a bun in the oven??
Any thoughts welcome ladies or any experiences other ladies have had with boob tenderness and pregnancy..
Or just any funny boob stories! 
Thanks 

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