Where mothers and fathers work, the twosome may, more often than in times before, consider resorting to female surrogates.

A wife who breeds naturally, in US situations on the average has 1.7 children, is 27.4 when she has a firstborn.

By then, both husband and wife are likely to be more financially on their feet and can more likely to find they are capable of being afford the costs of raising a family.  

Note that adoption is becoming less talked about as an alternative to a surrogate.