POC Test Results

Jenny • Late 20's. TTC #1 Recovering from 2nd miscarriage at 6-7 weeks.
Got the results of the D&C POC test today - Triploidy, an extra set of chromosomes from both parents. I guess it's supposed to be a random chromosomal error occurance. 
Anyone else have this? 
I'm 29, husband is 30. Both healthy and TTC #1. This was our first <a href="https://glowing.com/glow-fertility-program">IUI</a>, second early miscarriage - this time it was twins (one blighted ovum, one with low heartbeat at 7 weeks). 
I have a hard time believing in "random" these days.