Hi John,
No, the whole immigration process is maintained with high confidentiality, and unlike last years rounds, from this July they decided to announce the invitation date before each round. So, you have to wait till July result comes out.
Invitation rounds were held on Monday before, then it was changed to 1st and 3rd Friday of the month. This July it happened on Monday again. So you might get the feelings that this trend may continue for sometime (e.g. next one on 3rd of Aug). But this is just wild guess, no source at all.
And yes, with 70 points, it is very likely that you'll get your invitation on first try if your state sponsorship gets approved.