Fat loss while pregnant?

So I’m over weight on a weight loss journey. I’m doing everything the right way, exercising but not over doing it (walking, elliptical, yoga) and eating healthy but still eating enough calories and allow myself a treat once in a while. I have about 30 pounds left to lose after losing 50 already. I just found out I’m pregnant which wasn’t planned but exciting! I know it’s bad to lose weight while pregnant but with what I’m doing and I want to continue doing is it okay to lose fat while pregnant if you’re doing it in a healthy way? Or should I slow down my exercising?