Obviously the only thing that this would be relevant in protecting a person from is cases of sexual assault - ie something that can't be removed from the wearer without the wearer unlocking them. Something like this has been developed:
The shorts are designed to trigger a 130 db siren when touched by anybody looking to harm a woman
www.asianage.com
Of much broader relevance, here is a list of providers who will perform sterilizations on consenting adults, no or few questions asked, without gatekeeping along lines of, "too young," "no / too few children already," "questions about your sexual orientation," or things like that. There are both recommendations linked in the OP and in the comments below, and advice for assembling a binder / folder of documents to bring with you to present your case to a doctor (shouldn't be necessary but unfortunately sometimes that's what it takes)
Here is a continually updated masterdoc on state laws, "sanctuary" states, travel / transportation help, other forms of long-lasting implanted contraception, and accessing abortion pills:
A collection of resources for women and AFAB individuals seeking reproductive care and family planning services in the wake of a changing political landscape and a post Roe vs Wade America
docs.google.com
@whatevs you are joking about rape and you're not funny.