oki, i just wrote a response but then realised i misunderstood you. sorry about that
you are right for the situation i described in my comment. you can combine being a lesbian with a lot of other things, to make it a viable contraception.
i would argue tho, that not liking dick is the entire reason one wouldnt get pregnant in your situation. the lesbian part doesnt matter. meanwhile both a transphobe and a lesbian can get pregnant on their own but a transphobic lesbian can not.
id say its disrespectful to pretend lesbian, the label that commonly means woman/non-man lovin women/non-men to mean not being into dicks.
if you are not into dicks, then just say that, instead of pretending lesbianism excludes people with dicks.