I have had a misdiagnosed torsion of the right testicle which resulted in it dying and being removed

Maybe 6 months after that I am sure the varicocele started and was left untreated mainly because of an incompetent ultrasound technician suggesting it was nothing

4 years later I had another one because the dull ache got worse and a growth was forming

I am going in soon to the the surgery done

What are the chances I can still have kids?I am now 27