I think you're confused by what they were saying. The statements they made were lies, i.e. people pretending to be on birth control/that they cannot have kids/that they're wearing a condom, and duping people into having sex with them with that false information and potentially getting their partner pregnant or themselves pregnant without consent. While I'm not sure about women who lie about being on birth control, the male equivalent, 'stealthing', where a man pretends to be wearing a condom or starts wearing one and removes it during intercourse without consent (usually done in low-visibility situations) is certainly illegal.

Not gonna argue about whether or not the analogy is apt here, although I think the moral equivalence is quite clear.