How about prostitutes who have had IUDs or other reliable birth control inserted?
We already jail prostitutes and those who solicit them. (They show it on cops all the time.)
Those who contract an obligation who are unable to fulfill it should be punished.
So, by your words, you would be in favor of punishing women who become pregnant by some guy who she knows is unable to support a child.
What sort of punishment would you favor? Jail? Forced sterilization?