The network seems to be congested of recent and this is what happens when the bitcoin network is congested, i think there is nothing much to really worry about since it will get confirmed eventually, my friends have been complaining of their tractions taking almost 12 hours since the beginning of the week. However, you can try increase transafer fee next t I'll me to help broadcast the transaction much faster.... I just hope the network scale better when the lightning network got filly implemented