In some future this will be an option, yes. The counter only changes once the message has been received by your recipient. As this does not always happen in some seconds, the new amount is only predicted. There are ways to find out if a message has failed to deliver, is on delivery or was received. But to detect these states a timed request has to be sent which costs both battery and traffic.

I'm going on holidays next week for about one month, so don't expect any updates in that time