It doesnt affect ttc per se, however you should a) get vaccinated against it before you get pg and b) stay away from anyone who has either when you're pg unless you had it yourself.
Most people have had these diseases in which case they got nothing to worry about- ist just those that havent. Me for instance; i got vaccinated against measles but ive never had chickenpox so obviosly i'd wanna stay away from anyone who has chickenpox, particularly later in pregnancy.
Only mumps are a danger to men and sperm production- effectively can make them sterile if they get in adulthood.
Generally any illness will not make you perform at your best but as far as risks are concerend they are minimal unless you havent had any of these illnesses or/and are pregnant.
Hope this helps and good luck!
Omi xxx