Hi mama! I totally get it, balancing work and prenatal visits is tough, especially as an FTM! Unfortunately wala akong specific OB sa Santo Tomas/Tanauan area with Saturday clinics na matesting ko personally, but I'd suggest calling the hospitals there like Batangas Medical Center or asking your company health provider kung may partner OBs sila na may weekend slots, dahil sometimes mas flexible ang private clinics. You're doing great sa pag-effort na hanapin ang best setup para sa baby mo at sa sarili mo!