The toxoplasmosis excuse for not handling the kitty litter is great - I went 2 years with very rarely having to do the kitty litter while we were TTC & UTD - I has hoping DH would be then in the habit of changing it but sadly no he now rarely does it.

I'd just make any changes like not letting the cat sleep on your bed and keeping the baby's door closed (if those are your choices) early in the pregnancy so the cat is used to the new rules well before bubs arrives.

Good luck TTC!