How long will it take for this to confirm? https://www.blocktrail.com/BTC/tx/afd331b57479cad7084a96d5772579ac41b4682fb17a3e82c528e0fd7ed9e935

I'm worried as all my other payments that were smaller were almost instantly confirmed then when i do a bigger one 0.4 btc it just simple says unconfirmed, no status no nothing, whats going on?

I sent this using electrum electrum-2.9.3-portable

Thanks.