Soon as i read that i was thinking how good a peanut butter cheesecake sounds !
Cream cheese is pasteurized so it should be fine when they warn you to stay away from soft cheese they normally mean like fresh blue cheese and feta and some of those weird ones because they aren't pasteurized the same way
PB is good while pregnant. Lots of protein and iron. Philadelphia cheese? If so, cheese is really good too as long as it is pasteurized.