I think I just lost a BTC...

Well, I had an old paper wallet, and in the past I'd sweep it to mycelium and then transfer it to coinbase. Well I imported the private key to mycelium and then chose a normal fee then scanned my coinbase address and hit send and the screen went back to import and the paper wallet was emptied. But no BTC arrived in my coinbase. I'm pretty sure I messed up, just looking for advice now.