As long as your right testicle is fine then you should not have any problems having kids. I had an undescended testicle up until I was 24 and had two kids before surgery. So really in the end after surgery I found out that the undescended testicle was not functioning right to begin with and that the good  one was basically enough. Hope this helps.

i can help you with this query as one of my friend had a similar condition.and he is quite tall. i think your height and weight has something to do with your nourishment rather than single testicle being the problem.

I am 19 years old. I got hurt in my left testis before 5 years & it became very smaller & shrunk to negligible size. My right one is all right. could i able to produce enough sperm count for my next generation. could i mastrubate.