Female led relationships discussion

Alright, my spouse and I intended to have a kid this year, so we maxed out our FSA. We didn’t get pregnant yet, but we are pretty sure it will happen next time around. With that said, since there is still plenty of money left in the account, can I use those funds for a chastity belt as an eligible birth control expense? What do you think about that possibility? Just so you know, my insurance carrier is Aetna.