extension and auto pay

Good Morning. i have never done this before and googled it and this forum came up and ur answer to someone was if they need an extension ,to click schedule a payment. I did that, I just need one week. The problem is my autopayment for tomorrow still shows as a scheduled payment along with the one i just created. My question is will the new scheduled payment over-ride the normal monthly withdrawl on the 1st?  Thank you