Hi mama! Usually ang pinaka-affordable na clinics dito sa Parañaque ay yung government health centers or the bigger hospital labs like Medical City or Ospital ng Parañaque, mas mura talaga kaysa sa private clinics, and honestly the results are just as reliable! You can also call ahead para ma-confirm ang exact price since it varies, but generally mas sulit if pwede ka mag-walk-in during off-peak hours. Good luck sa test, hoping for the best for you!