Aww congrats sa baby mo! Unfortunately wala akong nakikilala na VBACK doctor specifically sa Calamba area, pero sigurado na may mga OBs dyan na experienced sa VBACs, I'd suggest calling the bigger hospitals in Calamba like Perpetual Succour or asking your current OB if they do VBACs or kung may referral sila. A few of us moms in my circle din nag-inquire before, kaya yung best move talaga is to ask around sa mommy groups din locally since maraming birthing experience stories dyan! Good luck sa second pregnancy mo, VBAC is totally possible!