Drinking water in relation to testing

I drink a lot of water through the day and night. I have had mixed results with OPKS and I blame my fluid intake (don't use them anymore). I just refuse to reduce the amount of water I drink for a test. It can reduce your cm and therefore could make it harder to conceive.

Currently in my TWW 11 DPO, and no BFP. With my first I didn't get one until 21 DPO.

Could this be just my body or does my water intake have something to do with this?

Also I know I very well i might not be pregnant.

Anyone else only get there BFP late?

My mom never got BFPs with her kids always had to go to the dr.