It'll say it's a double spend before it confirms, because that's exactly what you're doing. Once either confirms the other is I'll and void. So don't worry about it in the future, and if the person receiving the transaction is worried just have them wait for some confirmations.
Hey thanks.

Out of curiosity, do nodes selectively sometimes avoid "double spend" transactions out of safety concern, or they don't care. I've receive 2 confirmations after 1 block so I am wondering if that's because some nodes choose not to take it because of the double spend broadcast. Or it could just be the traffic or low fees