DPO symptoms?

Sabrina
How many DPO is normal to begin feeling symptoms if you are pregnant? 
I usually never have severe cramping before my periods (it comes on silently and without this app I would never know when it was coming because I never experience any PMS symptoms). 
My hopes are probably just up super high and I'm grasping for anything that seems off, but I'm curious to hear when you started feeling symptoms of early pregnancy?