I don't think you're alone in this thought process at all.
I'm a woman who wants no family in the future... but that doesn't mean there aren't others out there wh owant exactly what you do.
You'd be surprise how common some certain forms of zoophilia are in women and men. Of course don't expect anything to happen, don't get your expectations too high or share things you might regret, but it's always possible to meet and have a family with a zootolerant person or even another zoo if you're lucky enough.
Ultimately the choice whether or not to come out to future partners is up to you, but i would alwyas err on the side of caution with a secret this big.