Membrane sweep stops Braxton Hicks?!

I'm 39+2.  I had a stretch and sweep this afternoon, I was 2-3cm and 30%effaced and on my third day of having consistent but not painful BH contractions through the afternoon and evening (maybe prodromal labor).
After the sweep today my contractions completely stopped and I've had none since. 
Some bleeding, but that's to be expected.
Anyone else have the sweep only to have things seem to stall out? It almost feels like I've erased any progress. Ugh.