What can affect the effectiviness of birth control? can peeing to much after taking it, affect it? even if it is only for one day?

Birth control ?: Frequent urination will not affect any kind of birth control. If your contraceptive is oral (pills) and you are not regular taking them with a very low dose kind of pill common today, they may not be as effective. Your question lacks enough information to provide a more accurate answer, but if your period is delayed get a serum HCG test (very accurate) to be certain.