Nervous about possible vanishing twin.

B • Twin mama Est. 2/20/16
I had scans at 5 weeks, 7 weeks and 9 weeks. But now that I've been released to the regular ob, I am scared that something will happen to one of the babies before my next scan (Sept 9th) my RE said it's highly unlikely because we've seen both heartbeats, but I keep running into terrible twin loss stories on Facebook.