Yes, through egg and sperm cryopreservation. Although it is uncommon among men, it is becoming increasingly popular in women due to causes such as delayed motherhood and the sharp decrease in fertility levels with age. In these cases, freezing the eggs at a young age to use them for later pregnancy is advisable.
Cryopreservation is a method that gives men and women under cancer treatment the chance to become parents. Both radiotherapy and chemotherapy destroy egg- and sperm-making stem cells, and increase the likelihood for passing a genetic abnormality to offspring. This is the reason why cancer patients should choose to freeze their gametes before getting started with the treatment.