Cheese is an important source of protein and calcium for pregnant women but certain kinds do need to be avoided. Pregnant women are advised not to eat soft, mould-ripened cheeses, such as Brie or Camembert, and blue-veined cheeses, such as Danish Blue and Stilton. This is because these cheeses are more inclined to allow growth of bacteria, such as listeria, which can harm your unborn child.
Cheeses which are SAFE to eat in pregnancy
Hard cheeses: Austrian Smoked, Babybel, Caerphilly, Cheddar, Cheshire, Derby, Double Gloucester, Edam, Emmental, English goat's cheddar, Feta, Gouda, Gruyere, Halloumi, Havarti, Jarlsberg, Lancashire, Mozzarella, Orkney, Paneer, Parmesan, Pecorino (hard), Provolone, Red Leicester.
Soft and processed cheeses: Boursin, cottage cheese, cheese spread, cream cheese, Mascarpone, Philadelphia, Quark, Ricotta.
Yoghurts, fromage frais, soured cream and creme fraiche — any variety, including natural, flavoured and biologically active — are all safe to eat.
Cheeses to AVOID in pregnancy
Mould-ripened soft cheeses: Brie, Blue Brie, Cambozola, Camembert, Chaumes, Pont L'Eveque, Prince Jean, Tallegio. Vacherin-Fribourgeois, Weichkaese.
Blue-veined cheeses: Bavarian Blue, Bergader, Bleu d'Auvergne, Blue Shropshire, Cabrales, Danish Blue, Dolcelatte, Doppelrhamstuge, Eldel pilz, Gorgonzola, Manchego, Romano, Roncal, Roquefort, Stilton, Tommes, Wensleydale (blue).
Soft unpasteurised goat and sheep's cheeses: Chabichou, Pyramide, Torta del Cesar.
I guess that you had either Cesar or Greek Salad, well the cheese in Cesar is totally OK, but do be aware about Ceasar Salad dressing because of the raw eggs, about Greek salad, try to avoid it, it might use soft cheese, otherwise, it will be fine...
good luck