My Grandaddy got pregnant (Accidental breeding)

So I was growing out some GDP clones (which are like 9-10th generation clone from a clone), I got some bag seed of some weed my friend got in Mexico, Long story short, the one plant that survived ended up being a hermie, and Got most of my clones pregnant and I got about 50-60 seeds.

I guess my question is How should I go about breeding my own strain, and what are the likely chances all the seeds might turn out hermie?

ohhh for clarification, the GDP are ALL female clones, never hermie'd on me, the Mexican plant was the one that hermied and the pollen from that got GDP pregnant

Don’t use seeds from herm prone genetics in breeding projects. Pretty simple but way too often overlooked. What happened was not accidental breeding just an accident, be glad you got some good smoke and move on.

^This guy is 100% correct.