Losing Oil. help?

i decide to check my oil dipstick today theres no reading. I know I filled up just a few months ago so, WTF. this happens with my dipstick a lot sometimes its the way i'm parked .....butt it didn't make a difference when i moved the car to flat ground this time. theres no signs of leak, no crack in the head, no puddles of oil in my garage just like two or three drops over a time of approx. 5 months. i just replaced the pan gasket last mid fall, made sure bolts were tighten to specs and put a lot of gasket sealant . no VC leaks either.
so i test it, i filled up oil some oil and now i get a reading.
my friend told me i'm most likely burning oil, and its the piston rings.
anyone know what else it might be???, ill check everything after i get some suggestions
+ white smoke is burning oil right?

so i test it, i filled up oil some oil and now i get a reading.
my friend told me i'm most likely burning oil, and its the piston rings.
anyone know what else it might be???, ill check everything after i get some suggestions
+ white smoke is burning oil right?