Well follow those simple steps; 1)- cum in a glass, 2)- put it in the freezer and let it stay there a couple of time. Aaaaaand.. DONE! and it costed U$$ 0, 00.
But seriously, we are talking about cryogenics here, so I doubt a freezer will help in the long run. It will depend on the company and the country.
But to be honest, males can be fertile waay more years than females, unless your profession somehow endangers your spermatogenesis capacity (radiation, damage to you 'nads...etc)
The main problem is getting a cryo'ed egg and the surrogate. (Getting them eggs is more invasive and costly mate)