One testicle

I know this is a long shot but has anyone ever had a husband or bf that’s only had one testicle and y’all are trying to conceive? My boyfriend only has one (due to a climbing/repelling accident) and we are TTC our second child. We had a chemical last August and our first born was conceived within 4 months of getting off the pill. We were told his chances of not being able to have kids but has anyone else dealt with this? Was it hard for y’all to conceive too?