How many maternity panty do we need?

I delivered via natural birth last month. I am still currently bleeding (approximately 6 weeks) but not a lot of blood till like first two days of menses. I only wore panty pads for the first two to three weeks and normal day pads (25cm) and panty liner at the later stage. I clean it frequently and just buy more pads because there is a need to change every few hours to prevent infection. The bleeding days for every mommies are different because there are other factors like breastfeeding etc will affect. Just take note of the hygiene and frequency of changing pads. Even if it’s only a little bit of blood but still need to change every few hours.