What are you talking about, breeding machine? Do you really think that's the only alternative?
If your wife's health or some other important consideration necessitate you suspend having children for a while, you abstain from sex during fertile periods. Simple as that. It's a sacrifice, yeah, but you do it because you love her and you want the best for her. Remember St. Paul? "Husbands love your wives as Christ loves the Church".
Now if a husband "needs" to have sex during fertile periods, his wife's emotional and physical well-being be damned, then I'd submit he's being a selfish, petulant little brat.
These are the *husbands* that I am referring to.