Driving to work this morning I think my clutch gave out

I never noticed it slipping or anything, only problem was that for the last couple days it seemed tight going into 2nd and 3rd gears and tight trying to down-shift. While on my way to work 2 redlights trying to take off it was kinda liked it popped out of gear when I took off then after that I can not get it to go back in any gear. With the clutch pressed all the way to the floor the car starts to try and move when I attempt to push it into gear but It will never go into gear. Can someone please assist me with some good or bad news in my hopes that ut us something more simple than the clutch itself??
If it is the clutch anyone have any ideas at what the cost of repairs might be to have this work done (average so I dont get screwed)
thanks,
Kinyoto