Hi mama! From what I know, kung may private OB ka na sa CDUH, mas practical talaga to just continue with her since she knows your case na and you won't be paying double, usually the hospital fee and OB fee are separate anyway, so you're not really saving much by switching to a package. A few of us tried both ways, and honestly, ang peace of mind na may trusted doctor ka throughout pregnancy and delivery is worth more than trying to "save" a few thousand, kaya I'd stick with your OB if you're comfortable with her na!