I have never had a cat with Toxoplasmosis, but I can tell you a little bit about it.
Toxoplasmosis is an infectious disease caused by a one-celled parasite called Toxoplasma gondii. It is a common parasite of cats throughout the world, but other species can become infected as well. The cat is unique because the organism must pass through cats, and only cats, in order to complete all of life cycle stages.
Cats usually become infected by eating rodents, some types of insects, and/or undercooked meat. Cats who go outdoors have an increased risk of becoming infected, but indoor cats can get it too.
In cats, the most common symptoms include changes in the eyes (inflammatory), respiratory, liver and central nervous system problems along with signs of pneumonia, jaundice (yellow coloring of skin, tissues and bodily fluids), or seizures.
Clindamycin hydrochloride is a common drug used to treat cats with toxoplasmosis. Most cats start to show signs of improvement in about 2-3 days after on the antibiotic. But infections that involve the eyes or central nervous system are more difficult to treat, but not impossible. Unfortunately, there is no proof that the drug will completely remove the organism from the catâ€™s body, but better results are usually achieved if the antibiotics are continued for four weeks or longer.
Cats that are negative for feline leukemia and FIV, and is getting better with medicine are usually fine. Unfortunately, cats with immune system disorders like feline leukemia or FIV, show advanced stages of the disease, or show central nervous system problems/infection have a harder time making a full recovery. I'm not sure if pregnancy will play any part in the recovery. You might check with the doctor to know more.
I hope your your kitty will start to feel better soon. There's still hope if it is toxoplasmosis even with the seriousness of your situation. I hope I helped to share a little bit more about the disease so you have a better understanding. I'm sure your veterinarian will everything possible for your kitty. Best wishes to you and your little girl.