Even if you don't have a cat it's important to test for toxoplasmosis in early pregnancy, especially if you grew up in rural areas or had the habit of consuming raw eggs. Majority of the population in some countries have the dormant form and never know about it. Nurse failed hard there. Maybe it'll be a plot point in the future.
I wonder why she said it like that Why won't she take him to McDonald's. I guess their relationship is now strange as well. In the early chapters it looks like they had a good relationship. And maybe she blames him as well but I think he should be at the doctor's appointments