Congrats sa baby, mommy! Try asking your OB kung may partner laboratory sila na may discount for patients, kasi marami talaga ang clinics na may arrangements na mas mura para sa regular clients, one of my mum friends got like 20-30% off sa Sta. Lucia mall area kasi partner ng OB niya. You can also check out the big chains like Quest or LabCorp branches near you, they're competitive pricewise, pero honestly best pa rin na tanungin muna yung OB office kung may referral discounts available!