C.N.
You can stop worrying about toxoplasmosis.
1- It's rare.
2 - Cats get it from eating infected mice and birds, so unless your cat hunts, his/her chances of getting it are nil.
3 - People get it via ingestion. So unless you're putting your hands in your mouth or eating after cleaning the litter box without washing your hands first, even if your cat was infected your chances of getting it would still be vanishingly small.
I worked in an animal hospital the entire time I was pregnant, and the only thing that changed about my duties was that I was not allowed to lift Rottweilers and I was not allowed to shoot x-rays. I cleaned litter boxes both at work and at home every day that I was pregnant. I wore gloves and washed my hands with plain (not antibacterial) soap and water after.