Help with DIY period pads.

Hello everyone.

To start with, I have heavy periods. During the week I get, the last five days I go through xl pads twice a day. Yes, I do take medicines, but it helps enough to not empty my body off of blood.

I have been thinking to make my own DIY period pads to overcome the sacrifice of an arm and a leg to buy pads. YT suggested to use PUL(Polyurethane Laminated) fabricfor the last layer and this costs a fortune too.

My question is can I use waxed cotten fabric in place of PUL?