No power

[Ice3460]

Hey guys, I just got my bike back on the road. Last time I rode it, the rpms jumped with no power to the wheels.... i didn't think much of it at the time. Today I got about 2 miles from my house... and i noticed I was barely getting any power when I tried to open the throttle at 45 mph... i pulled over and turned around... when i went to accelerate im not getting any power at all. The bike won't move in gear nor will it stall.. it just revs up. It shifts into all gears but doesn't do anything. Im assuming this is a clutch problem but I wanted to get everyone's opinion before I ordered a new clutch. Its never had a clutch change and its a 2000 busa 23K miles. Thanks!