I sent 0.3 btc over to WeExchange just under 2 hours ago and it's still at 0 confirmations.

https://blockchain.info/tx/29630e00c6c7323c46efcc689e4ed178cf31f3bce1dbe7a1a1b665b28a8b345d

I've only made a few transactions in the past, but usually I get at least one confirmation within 10 minutes. Has something gone wrong?